11801975

素因数分解:

$5^2\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:251

約数の個数: 24

約数和(自身を含む): 15222240

約数和(自身を除く): 3420265

約数列:

[1, 5, 25, 61, 71, 109, 305, 355, 545, 1525, 1775, 2725, 4331, 6649, 7739, 21655, 33245, 38695, 108275, 166225, 193475, 472079, 2360395, 11801975]

約数ペア:

[(1, 11801975), (5, 2360395), (25, 472079), (61, 193475), (71, 166225), (109, 108275), (305, 38695), (355, 33245), (545, 21655), (1525, 7739), (1775, 6649), (2725, 4331)]