10001800

素因数分解:

$2^3\times 5^2\times {\mathrm{43}}^1\times {\mathrm{1163}}^1$

素因数の和:1222

約数の個数: 48

約数和(自身を含む): 23815440

約数和(自身を除く): 13813640

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 43, 50, 86, 100, 172, 200, 215, 344, 430, 860, 1075, 1163, 1720, 2150, 2326, 4300, 4652, 5815, 8600, 9304, 11630, 23260, 29075, 46520, 50009, 58150, 100018, 116300, 200036, 232600, 250045, 400072, 500090, 1000180, 1250225, 2000360, 2500450, 5000900, 10001800]

約数ペア:

[(1, 10001800), (2, 5000900), (4, 2500450), (5, 2000360), (8, 1250225), (10, 1000180), (20, 500090), (25, 400072), (40, 250045), (43, 232600), (50, 200036), (86, 116300), (100, 100018), (172, 58150), (200, 50009), (215, 46520), (344, 29075), (430, 23260), (860, 11630), (1075, 9304), (1163, 8600), (1720, 5815), (2150, 4652), (2326, 4300)]