19719720

素因数分解:

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

素因数の和:101

約数の個数: 192

約数和(自身を含む): 71496000

約数和(自身を除く): 51776280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 27, 30, 31, 36, 38, 40, 45, 54, 57, 60, 62, 72, 76, 90, 93, 95, 108, 114, 120, 124, 135, 152, 155, 171, 180, 186, 190, 216, 228, 248, 270, 279, 285, 310, 342, 360, 372, 380, 456, 465, 513, 540, 558, 570, 589, 620, 684, 744, 760, 837, 855, 930, 961, 1026, 1080, 1116, 1140, 1178, 1240, 1368, 1395, 1674, 1710, 1767, 1860, 1922, 2052, 2232, 2280, 2356, 2565, 2790, 2883, 2945, 3348, 3420, 3534, 3720, 3844, 4104, 4185, 4712, 4805, 5130, 5301, 5580, 5766, 5890, 6696, 6840, 7068, 7688, 8370, 8649, 8835, 9610, 10260, 10602, 11160, 11532, 11780, 14136, 14415, 15903, 16740, 17298, 17670, 18259, 19220, 20520, 21204, 23064, 23560, 25947, 26505, 28830, 31806, 33480, 34596, 35340, 36518, 38440, 42408, 43245, 51894, 53010, 54777, 57660, 63612, 69192, 70680, 73036, 79515, 86490, 91295, 103788, 106020, 109554, 115320, 127224, 129735, 146072, 159030, 164331, 172980, 182590, 207576, 212040, 219108, 259470, 273885, 318060, 328662, 345960, 365180, 438216, 492993, 518940, 547770, 636120, 657324, 730360, 821655, 985986, 1037880, 1095540, 1314648, 1643310, 1971972, 2191080, 2464965, 3286620, 3943944, 4929930, 6573240, 9859860, 19719720]

約数ペア:

[(1, 19719720), (2, 9859860), (3, 6573240), (4, 4929930), (5, 3943944), (6, 3286620), (8, 2464965), (9, 2191080), (10, 1971972), (12, 1643310), (15, 1314648), (18, 1095540), (19, 1037880), (20, 985986), (24, 821655), (27, 730360), (30, 657324), (31, 636120), (36, 547770), (38, 518940), (40, 492993), (45, 438216), (54, 365180), (57, 345960), (60, 328662), (62, 318060), (72, 273885), (76, 259470), (90, 219108), (93, 212040), (95, 207576), (108, 182590), (114, 172980), (120, 164331), (124, 159030), (135, 146072), (152, 129735), (155, 127224), (171, 115320), (180, 109554), (186, 106020), (190, 103788), (216, 91295), (228, 86490), (248, 79515), (270, 73036), (279, 70680), (285, 69192), (310, 63612), (342, 57660), (360, 54777), (372, 53010), (380, 51894), (456, 43245), (465, 42408), (513, 38440), (540, 36518), (558, 35340), (570, 34596), (589, 33480), (620, 31806), (684, 28830), (744, 26505), (760, 25947), (837, 23560), (855, 23064), (930, 21204), (961, 20520), (1026, 19220), (1080, 18259), (1116, 17670), (1140, 17298), (1178, 16740), (1240, 15903), (1368, 14415), (1395, 14136), (1674, 11780), (1710, 11532), (1767, 11160), (1860, 10602), (1922, 10260), (2052, 9610), (2232, 8835), (2280, 8649), (2356, 8370), (2565, 7688), (2790, 7068), (2883, 6840), (2945, 6696), (3348, 5890), (3420, 5766), (3534, 5580), (3720, 5301), (3844, 5130), (4104, 4805), (4185, 4712)]