31096660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{571}}^1$

素因数の和:976

約数の個数: 48

約数和(自身を含む): 74954880

約数和(自身を除く): 43858220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 389, 571, 778, 1142, 1556, 1945, 2284, 2723, 2855, 3890, 3997, 5446, 5710, 7780, 7994, 10892, 11420, 13615, 15988, 19985, 27230, 39970, 54460, 79940, 222119, 444238, 888476, 1110595, 1554833, 2221190, 3109666, 4442380, 6219332, 7774165, 15548330, 31096660]

約数ペア:

[(1, 31096660), (2, 15548330), (4, 7774165), (5, 6219332), (7, 4442380), (10, 3109666), (14, 2221190), (20, 1554833), (28, 1110595), (35, 888476), (70, 444238), (140, 222119), (389, 79940), (571, 54460), (778, 39970), (1142, 27230), (1556, 19985), (1945, 15988), (2284, 13615), (2723, 11420), (2855, 10892), (3890, 7994), (3997, 7780), (5446, 5710)]