239968144

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{18913}}^1$

素因数の和:18995

約数の個数: 40

約数和(自身を含む): 508937912

約数和(自身を除く): 268969768

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 61, 104, 122, 208, 244, 488, 793, 976, 1586, 3172, 6344, 12688, 18913, 37826, 75652, 151304, 245869, 302608, 491738, 983476, 1153693, 1966952, 2307386, 3933904, 4614772, 9229544, 14998009, 18459088, 29996018, 59992036, 119984072, 239968144]

約数ペア:

[(1, 239968144), (2, 119984072), (4, 59992036), (8, 29996018), (13, 18459088), (16, 14998009), (26, 9229544), (52, 4614772), (61, 3933904), (104, 2307386), (122, 1966952), (208, 1153693), (244, 983476), (488, 491738), (793, 302608), (976, 245869), (1586, 151304), (3172, 75652), (6344, 37826), (12688, 18913)]