90435280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{6689}}^1$

素因数の和:6728

約数の個数: 60

約数和(自身を含む): 227714220

約数和(自身を除く): 137278940

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 169, 208, 260, 338, 520, 676, 845, 1040, 1352, 1690, 2704, 3380, 6689, 6760, 13378, 13520, 26756, 33445, 53512, 66890, 86957, 107024, 133780, 173914, 267560, 347828, 434785, 535120, 695656, 869570, 1130441, 1391312, 1739140, 2260882, 3478280, 4521764, 5652205, 6956560, 9043528, 11304410, 18087056, 22608820, 45217640, 90435280]

約数ペア:

[(1, 90435280), (2, 45217640), (4, 22608820), (5, 18087056), (8, 11304410), (10, 9043528), (13, 6956560), (16, 5652205), (20, 4521764), (26, 3478280), (40, 2260882), (52, 1739140), (65, 1391312), (80, 1130441), (104, 869570), (130, 695656), (169, 535120), (208, 434785), (260, 347828), (338, 267560), (520, 173914), (676, 133780), (845, 107024), (1040, 86957), (1352, 66890), (1690, 53512), (2704, 33445), (3380, 26756), (6689, 13520), (6760, 13378)]