81235648

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{389}}^1$

素因数の和:665

約数の個数: 56

約数和(自身を含む): 174741840

約数和(自身を除く): 93506192

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 208, 251, 389, 416, 502, 778, 832, 1004, 1556, 2008, 3112, 3263, 4016, 5057, 6224, 6526, 8032, 10114, 12448, 13052, 16064, 20228, 24896, 26104, 40456, 52208, 80912, 97639, 104416, 161824, 195278, 208832, 323648, 390556, 781112, 1269307, 1562224, 2538614, 3124448, 5077228, 6248896, 10154456, 20308912, 40617824, 81235648]

約数ペア:

[(1, 81235648), (2, 40617824), (4, 20308912), (8, 10154456), (13, 6248896), (16, 5077228), (26, 3124448), (32, 2538614), (52, 1562224), (64, 1269307), (104, 781112), (208, 390556), (251, 323648), (389, 208832), (416, 195278), (502, 161824), (778, 104416), (832, 97639), (1004, 80912), (1556, 52208), (2008, 40456), (3112, 26104), (3263, 24896), (4016, 20228), (5057, 16064), (6224, 13052), (6526, 12448), (8032, 10114)]