20255152

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{421}}^1$

素因数の和:557

約数の個数: 40

約数和(自身を含む): 41025152

約数和(自身を除く): 20770000

約数列:

[1, 2, 4, 8, 16, 31, 62, 97, 124, 194, 248, 388, 421, 496, 776, 842, 1552, 1684, 3007, 3368, 6014, 6736, 12028, 13051, 24056, 26102, 40837, 48112, 52204, 81674, 104408, 163348, 208816, 326696, 653392, 1265947, 2531894, 5063788, 10127576, 20255152]

約数ペア:

[(1, 20255152), (2, 10127576), (4, 5063788), (8, 2531894), (16, 1265947), (31, 653392), (62, 326696), (97, 208816), (124, 163348), (194, 104408), (248, 81674), (388, 52204), (421, 48112), (496, 40837), (776, 26102), (842, 24056), (1552, 13051), (1684, 12028), (3007, 6736), (3368, 6014)]