256400432

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{2207}}^1$

素因数の和:2405

約数の個数: 40

約数和(自身を含む): 510074496

約数和(自身を除く): 253674064

約数列:

[1, 2, 4, 8, 16, 53, 106, 137, 212, 274, 424, 548, 848, 1096, 2192, 2207, 4414, 7261, 8828, 14522, 17656, 29044, 35312, 58088, 116176, 116971, 233942, 302359, 467884, 604718, 935768, 1209436, 1871536, 2418872, 4837744, 16025027, 32050054, 64100108, 128200216, 256400432]

約数ペア:

[(1, 256400432), (2, 128200216), (4, 64100108), (8, 32050054), (16, 16025027), (53, 4837744), (106, 2418872), (137, 1871536), (212, 1209436), (274, 935768), (424, 604718), (548, 467884), (848, 302359), (1096, 233942), (2192, 116971), (2207, 116176), (4414, 58088), (7261, 35312), (8828, 29044), (14522, 17656)]