816560

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{173}}^1$

素因数の和:245

約数の個数: 40

約数和(自身を含む): 1941840

約数和(自身を除く): 1125280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 80, 118, 173, 236, 295, 346, 472, 590, 692, 865, 944, 1180, 1384, 1730, 2360, 2768, 3460, 4720, 6920, 10207, 13840, 20414, 40828, 51035, 81656, 102070, 163312, 204140, 408280, 816560]

約数ペア:

[(1, 816560), (2, 408280), (4, 204140), (5, 163312), (8, 102070), (10, 81656), (16, 51035), (20, 40828), (40, 20414), (59, 13840), (80, 10207), (118, 6920), (173, 4720), (236, 3460), (295, 2768), (346, 2360), (472, 1730), (590, 1384), (692, 1180), (865, 944)]