261192240

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{313}}^1$

素因数の和:412

約数の個数: 240

約数和(自身を含む): 941472480

約数和(自身を除く): 680280240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 36, 38, 40, 45, 48, 57, 60, 61, 72, 76, 80, 90, 95, 114, 120, 122, 144, 152, 171, 180, 183, 190, 228, 240, 244, 285, 304, 305, 313, 342, 360, 366, 380, 456, 488, 549, 570, 610, 626, 684, 720, 732, 760, 855, 912, 915, 939, 976, 1098, 1140, 1159, 1220, 1252, 1368, 1464, 1520, 1565, 1710, 1830, 1878, 2196, 2280, 2318, 2440, 2504, 2736, 2745, 2817, 2928, 3130, 3420, 3477, 3660, 3756, 4392, 4560, 4636, 4695, 4880, 5008, 5490, 5634, 5795, 5947, 6260, 6840, 6954, 7320, 7512, 8784, 9272, 9390, 10431, 10980, 11268, 11590, 11894, 12520, 13680, 13908, 14085, 14640, 15024, 17385, 17841, 18544, 18780, 19093, 20862, 21960, 22536, 23180, 23788, 25040, 27816, 28170, 29735, 34770, 35682, 37560, 38186, 41724, 43920, 45072, 46360, 47576, 52155, 53523, 55632, 56340, 57279, 59470, 69540, 71364, 75120, 76372, 83448, 89205, 92720, 95152, 95465, 104310, 107046, 112680, 114558, 118940, 139080, 142728, 152744, 166896, 171837, 178410, 190930, 208620, 214092, 225360, 229116, 237880, 267615, 278160, 285456, 286395, 305488, 343674, 356820, 362767, 381860, 417240, 428184, 458232, 475760, 535230, 572790, 687348, 713640, 725534, 763720, 834480, 856368, 859185, 916464, 1070460, 1088301, 1145580, 1374696, 1427280, 1451068, 1527440, 1718370, 1813835, 2140920, 2176602, 2291160, 2749392, 2902136, 3264903, 3436740, 3627670, 4281840, 4353204, 4582320, 5441505, 5804272, 6529806, 6873480, 7255340, 8706408, 10883010, 13059612, 13746960, 14510680, 16324515, 17412816, 21766020, 26119224, 29021360, 32649030, 43532040, 52238448, 65298060, 87064080, 130596120, 261192240]

約数ペア:

[(1, 261192240), (2, 130596120), (3, 87064080), (4, 65298060), (5, 52238448), (6, 43532040), (8, 32649030), (9, 29021360), (10, 26119224), (12, 21766020), (15, 17412816), (16, 16324515), (18, 14510680), (19, 13746960), (20, 13059612), (24, 10883010), (30, 8706408), (36, 7255340), (38, 6873480), (40, 6529806), (45, 5804272), (48, 5441505), (57, 4582320), (60, 4353204), (61, 4281840), (72, 3627670), (76, 3436740), (80, 3264903), (90, 2902136), (95, 2749392), (114, 2291160), (120, 2176602), (122, 2140920), (144, 1813835), (152, 1718370), (171, 1527440), (180, 1451068), (183, 1427280), (190, 1374696), (228, 1145580), (240, 1088301), (244, 1070460), (285, 916464), (304, 859185), (305, 856368), (313, 834480), (342, 763720), (360, 725534), (366, 713640), (380, 687348), (456, 572790), (488, 535230), (549, 475760), (570, 458232), (610, 428184), (626, 417240), (684, 381860), (720, 362767), (732, 356820), (760, 343674), (855, 305488), (912, 286395), (915, 285456), (939, 278160), (976, 267615), (1098, 237880), (1140, 229116), (1159, 225360), (1220, 214092), (1252, 208620), (1368, 190930), (1464, 178410), (1520, 171837), (1565, 166896), (1710, 152744), (1830, 142728), (1878, 139080), (2196, 118940), (2280, 114558), (2318, 112680), (2440, 107046), (2504, 104310), (2736, 95465), (2745, 95152), (2817, 92720), (2928, 89205), (3130, 83448), (3420, 76372), (3477, 75120), (3660, 71364), (3756, 69540), (4392, 59470), (4560, 57279), (4636, 56340), (4695, 55632), (4880, 53523), (5008, 52155), (5490, 47576), (5634, 46360), (5795, 45072), (5947, 43920), (6260, 41724), (6840, 38186), (6954, 37560), (7320, 35682), (7512, 34770), (8784, 29735), (9272, 28170), (9390, 27816), (10431, 25040), (10980, 23788), (11268, 23180), (11590, 22536), (11894, 21960), (12520, 20862), (13680, 19093), (13908, 18780), (14085, 18544), (14640, 17841), (15024, 17385)]