18662960

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2953}}^1$

素因数の和:3045

約数の個数: 40

約数和(自身を含む): 43955520

約数和(自身を除く): 25292560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 2953, 3160, 5906, 6320, 11812, 14765, 23624, 29530, 47248, 59060, 118120, 233287, 236240, 466574, 933148, 1166435, 1866296, 2332870, 3732592, 4665740, 9331480, 18662960]

約数ペア:

[(1, 18662960), (2, 9331480), (4, 4665740), (5, 3732592), (8, 2332870), (10, 1866296), (16, 1166435), (20, 933148), (40, 466574), (79, 236240), (80, 233287), (158, 118120), (316, 59060), (395, 47248), (632, 29530), (790, 23624), (1264, 14765), (1580, 11812), (2953, 6320), (3160, 5906)]