18620240

素因数分解:

$2^4\times 5^1\times {\mathrm{232753}}^1$

素因数の和:232766

約数の個数: 20

約数和(自身を含む): 43292244

約数和(自身を除く): 24672004

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 232753, 465506, 931012, 1163765, 1862024, 2327530, 3724048, 4655060, 9310120, 18620240]

約数ペア:

[(1, 18620240), (2, 9310120), (4, 4655060), (5, 3724048), (8, 2327530), (10, 1862024), (16, 1163765), (20, 931012), (40, 465506), (80, 232753)]