20686020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{3163}}^1$

素因数の和:3284

約数の個数: 48

約数和(自身を含む): 58470720

約数和(自身を除く): 37784700

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 109, 218, 327, 436, 545, 654, 1090, 1308, 1635, 2180, 3163, 3270, 6326, 6540, 9489, 12652, 15815, 18978, 31630, 37956, 47445, 63260, 94890, 189780, 344767, 689534, 1034301, 1379068, 1723835, 2068602, 3447670, 4137204, 5171505, 6895340, 10343010, 20686020]

約数ペア:

[(1, 20686020), (2, 10343010), (3, 6895340), (4, 5171505), (5, 4137204), (6, 3447670), (10, 2068602), (12, 1723835), (15, 1379068), (20, 1034301), (30, 689534), (60, 344767), (109, 189780), (218, 94890), (327, 63260), (436, 47445), (545, 37956), (654, 31630), (1090, 18978), (1308, 15815), (1635, 12652), (2180, 9489), (3163, 6540), (3270, 6326)]