982640

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{173}}^1$

素因数の和:257

約数の個数: 40

約数和(自身を含む): 2330208

約数和(自身を除く): 1347568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 173, 284, 346, 355, 568, 692, 710, 865, 1136, 1384, 1420, 1730, 2768, 2840, 3460, 5680, 6920, 12283, 13840, 24566, 49132, 61415, 98264, 122830, 196528, 245660, 491320, 982640]

約数ペア:

[(1, 982640), (2, 491320), (4, 245660), (5, 196528), (8, 122830), (10, 98264), (16, 61415), (20, 49132), (40, 24566), (71, 13840), (80, 12283), (142, 6920), (173, 5680), (284, 3460), (346, 2840), (355, 2768), (568, 1730), (692, 1420), (710, 1384), (865, 1136)]