20404590

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{40009}}^1$

素因数の和:40036

約数の個数: 32

約数和(自身を含む): 51852960

約数和(自身を除く): 31448370

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 102, 170, 255, 510, 40009, 80018, 120027, 200045, 240054, 400090, 600135, 680153, 1200270, 1360306, 2040459, 3400765, 4080918, 6801530, 10202295, 20404590]

約数ペア:

[(1, 20404590), (2, 10202295), (3, 6801530), (5, 4080918), (6, 3400765), (10, 2040459), (15, 1360306), (17, 1200270), (30, 680153), (34, 600135), (51, 400090), (85, 240054), (102, 200045), (170, 120027), (255, 80018), (510, 40009)]