20400452

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{6547}}^1$

素因数の和:6611

約数の個数: 24

約数和(自身を含む): 38502240

約数和(自身を除く): 18101788

約数列:

[1, 2, 4, 19, 38, 41, 76, 82, 164, 779, 1558, 3116, 6547, 13094, 26188, 124393, 248786, 268427, 497572, 536854, 1073708, 5100113, 10200226, 20400452]

約数ペア:

[(1, 20400452), (2, 10200226), (4, 5100113), (19, 1073708), (38, 536854), (41, 497572), (76, 268427), (82, 248786), (164, 124393), (779, 26188), (1558, 13094), (3116, 6547)]