20641288525

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{38237}}^1$

素因数の和:38422

約数の個数: 48

約数和(自身を含む): 30269812608

約数和(自身を除く): 9628524083

約数列:

[1, 5, 11, 13, 25, 55, 65, 143, 151, 275, 325, 715, 755, 1661, 1963, 3575, 3775, 8305, 9815, 21593, 38237, 41525, 49075, 107965, 191185, 420607, 497081, 539825, 955925, 2103035, 2485405, 5467891, 5773787, 10515175, 12427025, 27339455, 28868935, 63511657, 75059231, 136697275, 144344675, 317558285, 375296155, 825651541, 1587791425, 1876480775, 4128257705, 20641288525]

約数ペア:

[(1, 20641288525), (5, 4128257705), (11, 1876480775), (13, 1587791425), (25, 825651541), (55, 375296155), (65, 317558285), (143, 144344675), (151, 136697275), (275, 75059231), (325, 63511657), (715, 28868935), (755, 27339455), (1661, 12427025), (1963, 10515175), (3575, 5773787), (3775, 5467891), (8305, 2485405), (9815, 2103035), (21593, 955925), (38237, 539825), (41525, 497081), (49075, 420607), (107965, 191185)]