161291240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{21563}}^1$

素因数の和:21602

約数の個数: 64

約数和(自身を含む): 419204160

約数和(自身を除く): 257912920

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 68, 85, 88, 110, 136, 170, 187, 220, 340, 374, 440, 680, 748, 935, 1496, 1870, 3740, 7480, 21563, 43126, 86252, 107815, 172504, 215630, 237193, 366571, 431260, 474386, 733142, 862520, 948772, 1185965, 1466284, 1832855, 1897544, 2371930, 2932568, 3665710, 4032281, 4743860, 7331420, 8064562, 9487720, 14662840, 16129124, 20161405, 32258248, 40322810, 80645620, 161291240]

約数ペア:

[(1, 161291240), (2, 80645620), (4, 40322810), (5, 32258248), (8, 20161405), (10, 16129124), (11, 14662840), (17, 9487720), (20, 8064562), (22, 7331420), (34, 4743860), (40, 4032281), (44, 3665710), (55, 2932568), (68, 2371930), (85, 1897544), (88, 1832855), (110, 1466284), (136, 1185965), (170, 948772), (187, 862520), (220, 733142), (340, 474386), (374, 431260), (440, 366571), (680, 237193), (748, 215630), (935, 172504), (1496, 107815), (1870, 86252), (3740, 43126), (7480, 21563)]