81297172

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{113}}^1\times {\mathrm{197}}^1$

素因数の和:408

約数の個数: 48

約数和(自身を含む): 159268032

約数和(自身を除く): 77970860

約数列:

[1, 2, 4, 11, 22, 44, 83, 113, 166, 197, 226, 332, 394, 452, 788, 913, 1243, 1826, 2167, 2486, 3652, 4334, 4972, 8668, 9379, 16351, 18758, 22261, 32702, 37516, 44522, 65404, 89044, 103169, 179861, 206338, 244871, 359722, 412676, 489742, 719444, 979484, 1847663, 3695326, 7390652, 20324293, 40648586, 81297172]

約数ペア:

[(1, 81297172), (2, 40648586), (4, 20324293), (11, 7390652), (22, 3695326), (44, 1847663), (83, 979484), (113, 719444), (166, 489742), (197, 412676), (226, 359722), (332, 244871), (394, 206338), (452, 179861), (788, 103169), (913, 89044), (1243, 65404), (1826, 44522), (2167, 37516), (2486, 32702), (3652, 22261), (4334, 18758), (4972, 16351), (8668, 9379)]