51244240

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20663}}^1$

素因数の和:20707

約数の個数: 40

約数和(自身を含む): 122992128

約数和(自身を除く): 71747888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 20663, 41326, 82652, 103315, 165304, 206630, 330608, 413260, 640553, 826520, 1281106, 1653040, 2562212, 3202765, 5124424, 6405530, 10248848, 12811060, 25622120, 51244240]

約数ペア:

[(1, 51244240), (2, 25622120), (4, 12811060), (5, 10248848), (8, 6405530), (10, 5124424), (16, 3202765), (20, 2562212), (31, 1653040), (40, 1281106), (62, 826520), (80, 640553), (124, 413260), (155, 330608), (248, 206630), (310, 165304), (496, 103315), (620, 82652), (1240, 41326), (2480, 20663)]