77984440

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{1571}}^1$

素因数の和:1672

約数の個数: 64

約数和(自身を含む): 188451360

約数和(自身を除く): 110466920

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 73, 85, 136, 146, 170, 292, 340, 365, 584, 680, 730, 1241, 1460, 1571, 2482, 2920, 3142, 4964, 6205, 6284, 7855, 9928, 12410, 12568, 15710, 24820, 26707, 31420, 49640, 53414, 62840, 106828, 114683, 133535, 213656, 229366, 267070, 458732, 534140, 573415, 917464, 1068280, 1146830, 1949611, 2293660, 3899222, 4587320, 7798444, 9748055, 15596888, 19496110, 38992220, 77984440]

約数ペア:

[(1, 77984440), (2, 38992220), (4, 19496110), (5, 15596888), (8, 9748055), (10, 7798444), (17, 4587320), (20, 3899222), (34, 2293660), (40, 1949611), (68, 1146830), (73, 1068280), (85, 917464), (136, 573415), (146, 534140), (170, 458732), (292, 267070), (340, 229366), (365, 213656), (584, 133535), (680, 114683), (730, 106828), (1241, 62840), (1460, 53414), (1571, 49640), (2482, 31420), (2920, 26707), (3142, 24820), (4964, 15710), (6205, 12568), (6284, 12410), (7855, 9928)]