20120851925

素因数分解:

$5^2\times {\mathrm{17}}^2\times {\mathrm{151}}^1\times {\mathrm{18443}}^1$

素因数の和:18638

約数の個数: 36

約数和(自身を含む): 26680795296

約数和(自身を除く): 6559943371

約数列:

[1, 5, 17, 25, 85, 151, 289, 425, 755, 1445, 2567, 3775, 7225, 12835, 18443, 43639, 64175, 92215, 218195, 313531, 461075, 1090975, 1567655, 2784893, 5330027, 7838275, 13924465, 26650135, 47343181, 69622325, 133250675, 236715905, 804834077, 1183579525, 4024170385, 20120851925]

約数ペア:

[(1, 20120851925), (5, 4024170385), (17, 1183579525), (25, 804834077), (85, 236715905), (151, 133250675), (289, 69622325), (425, 47343181), (755, 26650135), (1445, 13924465), (2567, 7838275), (3775, 5330027), (7225, 2784893), (12835, 1567655), (18443, 1090975), (43639, 461075), (64175, 313531), (92215, 218195)]