28101079640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{719}}^1\times {\mathrm{733}}^1$

素因数の和:1537

約数の個数: 128

約数和(自身を含む): 66968985600

約数和(自身を除く): 38867905960

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 43, 62, 86, 124, 155, 172, 215, 248, 310, 344, 430, 620, 719, 733, 860, 1240, 1333, 1438, 1466, 1720, 2666, 2876, 2932, 3595, 3665, 5332, 5752, 5864, 6665, 7190, 7330, 10664, 13330, 14380, 14660, 22289, 22723, 26660, 28760, 29320, 30917, 31519, 44578, 45446, 53320, 61834, 63038, 89156, 90892, 111445, 113615, 123668, 126076, 154585, 157595, 178312, 181784, 222890, 227230, 247336, 252152, 309170, 315190, 445780, 454460, 527027, 618340, 630380, 891560, 908920, 958427, 977089, 1054054, 1236680, 1260760, 1916854, 1954178, 2108108, 2635135, 3833708, 3908356, 4216216, 4792135, 4885445, 5270270, 7667416, 7816712, 9584270, 9770890, 10540540, 16337837, 19168540, 19541780, 21081080, 22662161, 32675674, 38337080, 39083560, 45324322, 65351348, 81689185, 90648644, 113310805, 130702696, 163378370, 181297288, 226621610, 326756740, 453243220, 653513480, 702526991, 906486440, 1405053982, 2810107964, 3512634955, 5620215928, 7025269910, 14050539820, 28101079640]

約数ペア:

[(1, 28101079640), (2, 14050539820), (4, 7025269910), (5, 5620215928), (8, 3512634955), (10, 2810107964), (20, 1405053982), (31, 906486440), (40, 702526991), (43, 653513480), (62, 453243220), (86, 326756740), (124, 226621610), (155, 181297288), (172, 163378370), (215, 130702696), (248, 113310805), (310, 90648644), (344, 81689185), (430, 65351348), (620, 45324322), (719, 39083560), (733, 38337080), (860, 32675674), (1240, 22662161), (1333, 21081080), (1438, 19541780), (1466, 19168540), (1720, 16337837), (2666, 10540540), (2876, 9770890), (2932, 9584270), (3595, 7816712), (3665, 7667416), (5332, 5270270), (5752, 4885445), (5864, 4792135), (6665, 4216216), (7190, 3908356), (7330, 3833708), (10664, 2635135), (13330, 2108108), (14380, 1954178), (14660, 1916854), (22289, 1260760), (22723, 1236680), (26660, 1054054), (28760, 977089), (29320, 958427), (30917, 908920), (31519, 891560), (44578, 630380), (45446, 618340), (53320, 527027), (61834, 454460), (63038, 445780), (89156, 315190), (90892, 309170), (111445, 252152), (113615, 247336), (123668, 227230), (126076, 222890), (154585, 181784), (157595, 178312)]