31890130

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{1721}}^1$

素因数の和:1854

約数の個数: 32

約数和(自身を含む): 61372080

約数和(自身を除く): 29481950

約数列:

[1, 2, 5, 10, 17, 34, 85, 109, 170, 218, 545, 1090, 1721, 1853, 3442, 3706, 8605, 9265, 17210, 18530, 29257, 58514, 146285, 187589, 292570, 375178, 937945, 1875890, 3189013, 6378026, 15945065, 31890130]

約数ペア:

[(1, 31890130), (2, 15945065), (5, 6378026), (10, 3189013), (17, 1875890), (34, 937945), (85, 375178), (109, 292570), (170, 187589), (218, 146285), (545, 58514), (1090, 29257), (1721, 18530), (1853, 17210), (3442, 9265), (3706, 8605)]