639745918

素因数分解:

$2^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{7417}}^1$

素因数の和:7588

約数の個数: 32

約数和(自身を含む): 1125874368

約数和(自身を除く): 486128450

約数列:

[1, 2, 7, 14, 61, 101, 122, 202, 427, 707, 854, 1414, 6161, 7417, 12322, 14834, 43127, 51919, 86254, 103838, 452437, 749117, 904874, 1498234, 3167059, 5243819, 6334118, 10487638, 45696137, 91392274, 319872959, 639745918]

約数ペア:

[(1, 639745918), (2, 319872959), (7, 91392274), (14, 45696137), (61, 10487638), (101, 6334118), (122, 5243819), (202, 3167059), (427, 1498234), (707, 904874), (854, 749117), (1414, 452437), (6161, 103838), (7417, 86254), (12322, 51919), (14834, 43127)]