25143728

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{311}}^1$

素因数の和:513

約数の個数: 40

約数和(自身を含む): 50758656

約数和(自身を除く): 25614928

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 163, 248, 311, 326, 496, 622, 652, 1244, 1304, 2488, 2608, 4976, 5053, 9641, 10106, 19282, 20212, 38564, 40424, 50693, 77128, 80848, 101386, 154256, 202772, 405544, 811088, 1571483, 3142966, 6285932, 12571864, 25143728]

約数ペア:

[(1, 25143728), (2, 12571864), (4, 6285932), (8, 3142966), (16, 1571483), (31, 811088), (62, 405544), (124, 202772), (163, 154256), (248, 101386), (311, 80848), (326, 77128), (496, 50693), (622, 40424), (652, 38564), (1244, 20212), (1304, 19282), (2488, 10106), (2608, 9641), (4976, 5053)]