2830517240

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{6689}}^1$

素因数の和:6920

約数の個数: 64

約数和(自身を含む): 6502680000

約数和(自身を除く): 3672162760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 149, 284, 298, 355, 568, 596, 710, 745, 1192, 1420, 1490, 2840, 2980, 5960, 6689, 10579, 13378, 21158, 26756, 33445, 42316, 52895, 53512, 66890, 84632, 105790, 133780, 211580, 267560, 423160, 474919, 949838, 996661, 1899676, 1993322, 2374595, 3799352, 3986644, 4749190, 4983305, 7973288, 9498380, 9966610, 18996760, 19933220, 39866440, 70762931, 141525862, 283051724, 353814655, 566103448, 707629310, 1415258620, 2830517240]

約数ペア:

[(1, 2830517240), (2, 1415258620), (4, 707629310), (5, 566103448), (8, 353814655), (10, 283051724), (20, 141525862), (40, 70762931), (71, 39866440), (142, 19933220), (149, 18996760), (284, 9966610), (298, 9498380), (355, 7973288), (568, 4983305), (596, 4749190), (710, 3986644), (745, 3799352), (1192, 2374595), (1420, 1993322), (1490, 1899676), (2840, 996661), (2980, 949838), (5960, 474919), (6689, 423160), (10579, 267560), (13378, 211580), (21158, 133780), (26756, 105790), (33445, 84632), (42316, 66890), (52895, 53512)]