400967640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{61}}^1$

素因数の和:159

約数の個数: 288

約数和(自身を含む): 1440644400

約数和(自身を除く): 1039676760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 30, 31, 36, 38, 40, 45, 57, 60, 61, 62, 72, 76, 90, 93, 95, 114, 120, 122, 124, 152, 155, 171, 180, 183, 186, 190, 228, 244, 248, 279, 285, 305, 310, 342, 360, 366, 372, 380, 456, 465, 488, 549, 558, 570, 589, 610, 620, 684, 732, 744, 760, 855, 915, 930, 961, 1098, 1116, 1140, 1159, 1178, 1220, 1240, 1368, 1395, 1464, 1710, 1767, 1830, 1860, 1891, 1922, 2196, 2232, 2280, 2318, 2356, 2440, 2745, 2790, 2883, 2945, 3420, 3477, 3534, 3660, 3720, 3782, 3844, 4392, 4636, 4712, 4805, 5301, 5490, 5580, 5673, 5766, 5795, 5890, 6840, 6954, 7068, 7320, 7564, 7688, 8649, 8835, 9272, 9455, 9610, 10431, 10602, 10980, 11160, 11346, 11532, 11590, 11780, 13908, 14136, 14415, 15128, 17019, 17298, 17385, 17670, 18259, 18910, 19220, 20862, 21204, 21960, 22692, 23064, 23180, 23560, 26505, 27816, 28365, 28830, 34038, 34596, 34770, 35340, 35929, 36518, 37820, 38440, 41724, 42408, 43245, 45384, 46360, 52155, 53010, 54777, 56730, 57660, 58621, 68076, 69192, 69540, 70680, 71858, 73036, 75640, 83448, 85095, 86490, 91295, 104310, 106020, 107787, 109554, 113460, 115320, 117242, 136152, 139080, 143716, 146072, 164331, 170190, 172980, 175863, 179645, 182590, 208620, 212040, 215574, 219108, 226920, 234484, 273885, 287432, 293105, 323361, 328662, 340380, 345960, 351726, 359290, 365180, 417240, 431148, 438216, 468968, 527589, 538935, 547770, 586210, 646722, 657324, 680760, 703452, 718580, 730360, 821655, 862296, 879315, 1055178, 1077870, 1095540, 1113799, 1172420, 1293444, 1314648, 1406904, 1437160, 1616805, 1643310, 1758630, 2110356, 2155740, 2191080, 2227598, 2344840, 2586888, 2637945, 3233610, 3286620, 3341397, 3517260, 4220712, 4311480, 4455196, 5275890, 5568995, 6467220, 6573240, 6682794, 7034520, 8910392, 10024191, 10551780, 11137990, 12934440, 13365588, 16706985, 20048382, 21103560, 22275980, 26731176, 33413970, 40096764, 44551960, 50120955, 66827940, 80193528, 100241910, 133655880, 200483820, 400967640]

約数ペア:

[(1, 400967640), (2, 200483820), (3, 133655880), (4, 100241910), (5, 80193528), (6, 66827940), (8, 50120955), (9, 44551960), (10, 40096764), (12, 33413970), (15, 26731176), (18, 22275980), (19, 21103560), (20, 20048382), (24, 16706985), (30, 13365588), (31, 12934440), (36, 11137990), (38, 10551780), (40, 10024191), (45, 8910392), (57, 7034520), (60, 6682794), (61, 6573240), (62, 6467220), (72, 5568995), (76, 5275890), (90, 4455196), (93, 4311480), (95, 4220712), (114, 3517260), (120, 3341397), (122, 3286620), (124, 3233610), (152, 2637945), (155, 2586888), (171, 2344840), (180, 2227598), (183, 2191080), (186, 2155740), (190, 2110356), (228, 1758630), (244, 1643310), (248, 1616805), (279, 1437160), (285, 1406904), (305, 1314648), (310, 1293444), (342, 1172420), (360, 1113799), (366, 1095540), (372, 1077870), (380, 1055178), (456, 879315), (465, 862296), (488, 821655), (549, 730360), (558, 718580), (570, 703452), (589, 680760), (610, 657324), (620, 646722), (684, 586210), (732, 547770), (744, 538935), (760, 527589), (855, 468968), (915, 438216), (930, 431148), (961, 417240), (1098, 365180), (1116, 359290), (1140, 351726), (1159, 345960), (1178, 340380), (1220, 328662), (1240, 323361), (1368, 293105), (1395, 287432), (1464, 273885), (1710, 234484), (1767, 226920), (1830, 219108), (1860, 215574), (1891, 212040), (1922, 208620), (2196, 182590), (2232, 179645), (2280, 175863), (2318, 172980), (2356, 170190), (2440, 164331), (2745, 146072), (2790, 143716), (2883, 139080), (2945, 136152), (3420, 117242), (3477, 115320), (3534, 113460), (3660, 109554), (3720, 107787), (3782, 106020), (3844, 104310), (4392, 91295), (4636, 86490), (4712, 85095), (4805, 83448), (5301, 75640), (5490, 73036), (5580, 71858), (5673, 70680), (5766, 69540), (5795, 69192), (5890, 68076), (6840, 58621), (6954, 57660), (7068, 56730), (7320, 54777), (7564, 53010), (7688, 52155), (8649, 46360), (8835, 45384), (9272, 43245), (9455, 42408), (9610, 41724), (10431, 38440), (10602, 37820), (10980, 36518), (11160, 35929), (11346, 35340), (11532, 34770), (11590, 34596), (11780, 34038), (13908, 28830), (14136, 28365), (14415, 27816), (15128, 26505), (17019, 23560), (17298, 23180), (17385, 23064), (17670, 22692), (18259, 21960), (18910, 21204), (19220, 20862)]