20533960

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{30197}}^1$

素因数の和:30225

約数の個数: 32

約数和(自身を含む): 48920760

約数和(自身を除く): 28386800

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 30197, 60394, 120788, 150985, 241576, 301970, 513349, 603940, 1026698, 1207880, 2053396, 2566745, 4106792, 5133490, 10266980, 20533960]

約数ペア:

[(1, 20533960), (2, 10266980), (4, 5133490), (5, 4106792), (8, 2566745), (10, 2053396), (17, 1207880), (20, 1026698), (34, 603940), (40, 513349), (68, 301970), (85, 241576), (136, 150985), (170, 120788), (340, 60394), (680, 30197)]