421145140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{521}}^1\times {\mathrm{3109}}^1$

素因数の和:3652

約数の個数: 48

約数和(自身を含む): 954570960

約数和(自身を除く): 533425820

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 521, 1042, 2084, 2605, 3109, 5210, 6218, 6773, 10420, 12436, 13546, 15545, 27092, 31090, 33865, 40417, 62180, 67730, 80834, 135460, 161668, 202085, 404170, 808340, 1619789, 3239578, 6479156, 8098945, 16197890, 21057257, 32395780, 42114514, 84229028, 105286285, 210572570, 421145140]

約数ペア:

[(1, 421145140), (2, 210572570), (4, 105286285), (5, 84229028), (10, 42114514), (13, 32395780), (20, 21057257), (26, 16197890), (52, 8098945), (65, 6479156), (130, 3239578), (260, 1619789), (521, 808340), (1042, 404170), (2084, 202085), (2605, 161668), (3109, 135460), (5210, 80834), (6218, 67730), (6773, 62180), (10420, 40417), (12436, 33865), (13546, 31090), (15545, 27092)]