20565512

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{233}}^1$

素因数の和:326

約数の個数: 64

約数和(自身を含む): 45489600

約数和(自身を除く): 24924088

約数列:

[1, 2, 4, 8, 11, 17, 22, 34, 44, 59, 68, 88, 118, 136, 187, 233, 236, 374, 466, 472, 649, 748, 932, 1003, 1298, 1496, 1864, 2006, 2563, 2596, 3961, 4012, 5126, 5192, 7922, 8024, 10252, 11033, 13747, 15844, 20504, 22066, 27494, 31688, 43571, 44132, 54988, 87142, 88264, 109976, 151217, 174284, 233699, 302434, 348568, 467398, 604868, 934796, 1209736, 1869592, 2570689, 5141378, 10282756, 20565512]

約数ペア:

[(1, 20565512), (2, 10282756), (4, 5141378), (8, 2570689), (11, 1869592), (17, 1209736), (22, 934796), (34, 604868), (44, 467398), (59, 348568), (68, 302434), (88, 233699), (118, 174284), (136, 151217), (187, 109976), (233, 88264), (236, 87142), (374, 54988), (466, 44132), (472, 43571), (649, 31688), (748, 27494), (932, 22066), (1003, 20504), (1298, 15844), (1496, 13747), (1864, 11033), (2006, 10252), (2563, 8024), (2596, 7922), (3961, 5192), (4012, 5126)]