20098160

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{8663}}^1$

素因数の和:8705

約数の個数: 40

約数和(自身を含む): 48345120

約数和(自身を除く): 28246960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 8663, 17326, 34652, 43315, 69304, 86630, 138608, 173260, 251227, 346520, 502454, 693040, 1004908, 1256135, 2009816, 2512270, 4019632, 5024540, 10049080, 20098160]

約数ペア:

[(1, 20098160), (2, 10049080), (4, 5024540), (5, 4019632), (8, 2512270), (10, 2009816), (16, 1256135), (20, 1004908), (29, 693040), (40, 502454), (58, 346520), (80, 251227), (116, 173260), (145, 138608), (232, 86630), (290, 69304), (464, 43315), (580, 34652), (1160, 17326), (2320, 8663)]