8643860

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{43}}^1$

素因数の和:117

約数の個数: 72

約数和(自身を含む): 20438880

約数和(自身を除く): 11795020

約数列:

[1, 2, 4, 5, 10, 19, 20, 23, 38, 43, 46, 76, 86, 92, 95, 115, 172, 190, 215, 230, 380, 430, 437, 460, 529, 817, 860, 874, 989, 1058, 1634, 1748, 1978, 2116, 2185, 2645, 3268, 3956, 4085, 4370, 4945, 5290, 8170, 8740, 9890, 10051, 10580, 16340, 18791, 19780, 20102, 22747, 37582, 40204, 45494, 50255, 75164, 90988, 93955, 100510, 113735, 187910, 201020, 227470, 375820, 432193, 454940, 864386, 1728772, 2160965, 4321930, 8643860]

約数ペア:

[(1, 8643860), (2, 4321930), (4, 2160965), (5, 1728772), (10, 864386), (19, 454940), (20, 432193), (23, 375820), (38, 227470), (43, 201020), (46, 187910), (76, 113735), (86, 100510), (92, 93955), (95, 90988), (115, 75164), (172, 50255), (190, 45494), (215, 40204), (230, 37582), (380, 22747), (430, 20102), (437, 19780), (460, 18791), (529, 16340), (817, 10580), (860, 10051), (874, 9890), (989, 8740), (1058, 8170), (1634, 5290), (1748, 4945), (1978, 4370), (2116, 4085), (2185, 3956), (2645, 3268)]