20419720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{30029}}^1$

素因数の和:30057

約数の個数: 32

約数和(自身を含む): 48648600

約数和(自身を除く): 28228880

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 30029, 60058, 120116, 150145, 240232, 300290, 510493, 600580, 1020986, 1201160, 2041972, 2552465, 4083944, 5104930, 10209860, 20419720]

約数ペア:

[(1, 20419720), (2, 10209860), (4, 5104930), (5, 4083944), (8, 2552465), (10, 2041972), (17, 1201160), (20, 1020986), (34, 600580), (40, 510493), (68, 300290), (85, 240232), (136, 150145), (170, 120116), (340, 60058), (680, 30029)]