203985808

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{22807}}^1$

素因数の和:22871

約数の個数: 40

約数和(自身を含む): 435541568

約数和(自身を除く): 231555760

約数列:

[1, 2, 4, 8, 13, 16, 26, 43, 52, 86, 104, 172, 208, 344, 559, 688, 1118, 2236, 4472, 8944, 22807, 45614, 91228, 182456, 296491, 364912, 592982, 980701, 1185964, 1961402, 2371928, 3922804, 4743856, 7845608, 12749113, 15691216, 25498226, 50996452, 101992904, 203985808]

約数ペア:

[(1, 203985808), (2, 101992904), (4, 50996452), (8, 25498226), (13, 15691216), (16, 12749113), (26, 7845608), (43, 4743856), (52, 3922804), (86, 2371928), (104, 1961402), (172, 1185964), (208, 980701), (344, 592982), (559, 364912), (688, 296491), (1118, 182456), (2236, 91228), (4472, 45614), (8944, 22807)]