391065025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{1913}}^1$

素因数の和:1990

約数の個数: 48

約数和(自身を含む): 568182384

約数和(自身を除く): 177117359

約数列:

[1, 5, 13, 17, 25, 37, 65, 85, 185, 221, 325, 425, 481, 629, 925, 1105, 1913, 2405, 3145, 5525, 8177, 9565, 12025, 15725, 24869, 32521, 40885, 47825, 70781, 124345, 162605, 204425, 353905, 422773, 621725, 813025, 920153, 1203277, 1769525, 2113865, 4600765, 6016385, 10569325, 15642601, 23003825, 30081925, 78213005, 391065025]

約数ペア:

[(1, 391065025), (5, 78213005), (13, 30081925), (17, 23003825), (25, 15642601), (37, 10569325), (65, 6016385), (85, 4600765), (185, 2113865), (221, 1769525), (325, 1203277), (425, 920153), (481, 813025), (629, 621725), (925, 422773), (1105, 353905), (1913, 204425), (2405, 162605), (3145, 124345), (5525, 70781), (8177, 47825), (9565, 40885), (12025, 32521), (15725, 24869)]