19665020

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{6599}}^1$

素因数の和:6757

約数の個数: 24

約数和(自身を含む): 41580000

約数和(自身を除く): 21914980

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 6599, 13198, 26396, 32995, 65990, 131980, 983251, 1966502, 3933004, 4916255, 9832510, 19665020]

約数ペア:

[(1, 19665020), (2, 9832510), (4, 4916255), (5, 3933004), (10, 1966502), (20, 983251), (149, 131980), (298, 65990), (596, 32995), (745, 26396), (1490, 13198), (2980, 6599)]