980717375

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{37}}^2\times {\mathrm{521}}^1$

素因数の和:621

約数の個数: 48

約数和(自身を含む): 1374897888

約数和(自身を除く): 394180513

約数列:

[1, 5, 11, 25, 37, 55, 125, 185, 275, 407, 521, 925, 1369, 1375, 2035, 2605, 4625, 5731, 6845, 10175, 13025, 15059, 19277, 28655, 34225, 50875, 65125, 75295, 96385, 143275, 171125, 212047, 376475, 481925, 713249, 716375, 1060235, 1882375, 2409625, 3566245, 5301175, 7845739, 17831225, 26505875, 39228695, 89156125, 196143475, 980717375]

約数ペア:

[(1, 980717375), (5, 196143475), (11, 89156125), (25, 39228695), (37, 26505875), (55, 17831225), (125, 7845739), (185, 5301175), (275, 3566245), (407, 2409625), (521, 1882375), (925, 1060235), (1369, 716375), (1375, 713249), (2035, 481925), (2605, 376475), (4625, 212047), (5731, 171125), (6845, 143275), (10175, 96385), (13025, 75295), (15059, 65125), (19277, 50875), (28655, 34225)]