81411460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{521}}^1\times {\mathrm{601}}^1$

素因数の和:1144

約数の個数: 48

約数和(自身を含む): 184775472

約数和(自身を除く): 103364012

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 521, 601, 1042, 1202, 2084, 2404, 2605, 3005, 5210, 6010, 6773, 7813, 10420, 12020, 13546, 15626, 27092, 31252, 33865, 39065, 67730, 78130, 135460, 156260, 313121, 626242, 1252484, 1565605, 3131210, 4070573, 6262420, 8141146, 16282292, 20352865, 40705730, 81411460]

約数ペア:

[(1, 81411460), (2, 40705730), (4, 20352865), (5, 16282292), (10, 8141146), (13, 6262420), (20, 4070573), (26, 3131210), (52, 1565605), (65, 1252484), (130, 626242), (260, 313121), (521, 156260), (601, 135460), (1042, 78130), (1202, 67730), (2084, 39065), (2404, 33865), (2605, 31252), (3005, 27092), (5210, 15626), (6010, 13546), (6773, 12020), (7813, 10420)]