3638840

素因数分解:

$2^3\times 5^1\times {\mathrm{90971}}^1$

素因数の和:90982

約数の個数: 16

約数和(自身を含む): 8187480

約数和(自身を除く): 4548640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 90971, 181942, 363884, 454855, 727768, 909710, 1819420, 3638840]

約数ペア:

[(1, 3638840), (2, 1819420), (4, 909710), (5, 727768), (8, 454855), (10, 363884), (20, 181942), (40, 90971)]