20161351925

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{809}}^1\times {\mathrm{6971}}^1$

素因数の和:7814

約数の個数: 48

約数和(自身を含む): 29411242560

約数和(自身を除く): 9249890635

約数列:

[1, 5, 11, 13, 25, 55, 65, 143, 275, 325, 715, 809, 3575, 4045, 6971, 8899, 10517, 20225, 34855, 44495, 52585, 76681, 90623, 115687, 174275, 222475, 262925, 383405, 453115, 578435, 996853, 1917025, 2265575, 2892175, 4984265, 5639539, 24921325, 28197695, 62034929, 73314007, 140988475, 310174645, 366570035, 806454077, 1550873225, 1832850175, 4032270385, 20161351925]

約数ペア:

[(1, 20161351925), (5, 4032270385), (11, 1832850175), (13, 1550873225), (25, 806454077), (55, 366570035), (65, 310174645), (143, 140988475), (275, 73314007), (325, 62034929), (715, 28197695), (809, 24921325), (3575, 5639539), (4045, 4984265), (6971, 2892175), (8899, 2265575), (10517, 1917025), (20225, 996853), (34855, 578435), (44495, 453115), (52585, 383405), (76681, 262925), (90623, 222475), (115687, 174275)]