861129625

素因数分解:

$5^3\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:251

約数の個数: 64

約数和(自身を含む): 1174118400

約数和(自身を除く): 312988775

約数列:

[1, 5, 25, 29, 31, 79, 97, 125, 145, 155, 395, 485, 725, 775, 899, 1975, 2291, 2425, 2449, 2813, 3007, 3625, 3875, 4495, 7663, 9875, 11455, 12125, 12245, 14065, 15035, 22475, 38315, 57275, 61225, 70325, 71021, 75175, 87203, 112375, 191575, 222227, 237553, 286375, 306125, 351625, 355105, 375875, 436015, 957875, 1111135, 1187765, 1775525, 2180075, 5555675, 5938825, 6889037, 8877625, 10900375, 27778375, 29694125, 34445185, 172225925, 861129625]

約数ペア:

[(1, 861129625), (5, 172225925), (25, 34445185), (29, 29694125), (31, 27778375), (79, 10900375), (97, 8877625), (125, 6889037), (145, 5938825), (155, 5555675), (395, 2180075), (485, 1775525), (725, 1187765), (775, 1111135), (899, 957875), (1975, 436015), (2291, 375875), (2425, 355105), (2449, 351625), (2813, 306125), (3007, 286375), (3625, 237553), (3875, 222227), (4495, 191575), (7663, 112375), (9875, 87203), (11455, 75175), (12125, 71021), (12245, 70325), (14065, 61225), (15035, 57275), (22475, 38315)]