20165164520

素因数分解:

$2^3\times 5^1\times {\mathrm{10151}}^1\times {\mathrm{49663}}^1$

素因数の和:59825

約数の個数: 32

約数和(自身を含む): 45377003520

約数和(自身を除く): 25211839000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 10151, 20302, 40604, 49663, 50755, 81208, 99326, 101510, 198652, 203020, 248315, 397304, 406040, 496630, 993260, 1986520, 504129113, 1008258226, 2016516452, 2520645565, 4033032904, 5041291130, 10082582260, 20165164520]

約数ペア:

[(1, 20165164520), (2, 10082582260), (4, 5041291130), (5, 4033032904), (8, 2520645565), (10, 2016516452), (20, 1008258226), (40, 504129113), (10151, 1986520), (20302, 993260), (40604, 496630), (49663, 406040), (50755, 397304), (81208, 248315), (99326, 203020), (101510, 198652)]