978705520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{911}}^1\times {\mathrm{1033}}^1$

素因数の和:1970

約数の個数: 80

約数和(自身を含む): 2455592832

約数和(自身を除く): 1476887312

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 911, 1033, 1040, 1822, 2066, 3644, 4132, 4555, 5165, 7288, 8264, 9110, 10330, 11843, 13429, 14576, 16528, 18220, 20660, 23686, 26858, 36440, 41320, 47372, 53716, 59215, 67145, 72880, 82640, 94744, 107432, 118430, 134290, 189488, 214864, 236860, 268580, 473720, 537160, 941063, 947440, 1074320, 1882126, 3764252, 4705315, 7528504, 9410630, 12233819, 15057008, 18821260, 24467638, 37642520, 48935276, 61169095, 75285040, 97870552, 122338190, 195741104, 244676380, 489352760, 978705520]

約数ペア:

[(1, 978705520), (2, 489352760), (4, 244676380), (5, 195741104), (8, 122338190), (10, 97870552), (13, 75285040), (16, 61169095), (20, 48935276), (26, 37642520), (40, 24467638), (52, 18821260), (65, 15057008), (80, 12233819), (104, 9410630), (130, 7528504), (208, 4705315), (260, 3764252), (520, 1882126), (911, 1074320), (1033, 947440), (1040, 941063), (1822, 537160), (2066, 473720), (3644, 268580), (4132, 236860), (4555, 214864), (5165, 189488), (7288, 134290), (8264, 118430), (9110, 107432), (10330, 94744), (11843, 82640), (13429, 72880), (14576, 67145), (16528, 59215), (18220, 53716), (20660, 47372), (23686, 41320), (26858, 36440)]