20199963025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{12889}}^1$

素因数の和:13090

約数の個数: 48

約数和(自身を含む): 28195070400

約数和(自身を除く): 7995107375

約数列:

[1, 5, 11, 25, 41, 55, 139, 205, 275, 451, 695, 1025, 1529, 2255, 3475, 5699, 7645, 11275, 12889, 28495, 38225, 62689, 64445, 141779, 142475, 313445, 322225, 528449, 708895, 1567225, 1791571, 2642245, 3544475, 5812939, 8957855, 13211225, 19707281, 29064695, 44789275, 73454411, 98536405, 145323475, 367272055, 492682025, 807998521, 1836360275, 4039992605, 20199963025]

約数ペア:

[(1, 20199963025), (5, 4039992605), (11, 1836360275), (25, 807998521), (41, 492682025), (55, 367272055), (139, 145323475), (205, 98536405), (275, 73454411), (451, 44789275), (695, 29064695), (1025, 19707281), (1529, 13211225), (2255, 8957855), (3475, 5812939), (5699, 3544475), (7645, 2642245), (11275, 1791571), (12889, 1567225), (28495, 708895), (38225, 528449), (62689, 322225), (64445, 313445), (141779, 142475)]