256444475

素因数分解:

$5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{643}}^1$

素因数の和:756

約数の個数: 48

約数和(自身を含む): 379475712

約数和(自身を除く): 123031237

約数列:

[1, 5, 7, 25, 35, 43, 53, 175, 215, 265, 301, 371, 643, 1075, 1325, 1505, 1855, 2279, 3215, 4501, 7525, 9275, 11395, 15953, 16075, 22505, 27649, 34079, 56975, 79765, 112525, 138245, 170395, 193543, 238553, 398825, 691225, 851975, 967715, 1192765, 1465397, 4838575, 5963825, 7326985, 10257779, 36634925, 51288895, 256444475]

約数ペア:

[(1, 256444475), (5, 51288895), (7, 36634925), (25, 10257779), (35, 7326985), (43, 5963825), (53, 4838575), (175, 1465397), (215, 1192765), (265, 967715), (301, 851975), (371, 691225), (643, 398825), (1075, 238553), (1325, 193543), (1505, 170395), (1855, 138245), (2279, 112525), (3215, 79765), (4501, 56975), (7525, 34079), (9275, 27649), (11395, 22505), (15953, 16075)]