30505840

素因数分解:

$2^4\times 5^1\times {\mathrm{381323}}^1$

素因数の和:381336

約数の個数: 20

約数和(自身を含む): 70926264

約数和(自身を除く): 40420424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 381323, 762646, 1525292, 1906615, 3050584, 3813230, 6101168, 7626460, 15252920, 30505840]

約数ペア:

[(1, 30505840), (2, 15252920), (4, 7626460), (5, 6101168), (8, 3813230), (10, 3050584), (16, 1906615), (20, 1525292), (40, 762646), (80, 381323)]