81695408

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{137999}}^1$

素因数の和:138044

約数の個数: 20

約数和(自身を含む): 162564000

約数和(自身を除く): 80868592

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 296, 592, 137999, 275998, 551996, 1103992, 2207984, 5105963, 10211926, 20423852, 40847704, 81695408]

約数ペア:

[(1, 81695408), (2, 40847704), (4, 20423852), (8, 10211926), (16, 5105963), (37, 2207984), (74, 1103992), (148, 551996), (296, 275998), (592, 137999)]