31917980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1\times {\mathrm{487}}^1$

素因数の和:638

約数の個数: 48

約数和(自身を含む): 70096320

約数和(自身を除く): 38178340

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 113, 116, 145, 226, 290, 452, 487, 565, 580, 974, 1130, 1948, 2260, 2435, 3277, 4870, 6554, 9740, 13108, 14123, 16385, 28246, 32770, 55031, 56492, 65540, 70615, 110062, 141230, 220124, 275155, 282460, 550310, 1100620, 1595899, 3191798, 6383596, 7979495, 15958990, 31917980]

約数ペア:

[(1, 31917980), (2, 15958990), (4, 7979495), (5, 6383596), (10, 3191798), (20, 1595899), (29, 1100620), (58, 550310), (113, 282460), (116, 275155), (145, 220124), (226, 141230), (290, 110062), (452, 70615), (487, 65540), (565, 56492), (580, 55031), (974, 32770), (1130, 28246), (1948, 16385), (2260, 14123), (2435, 13108), (3277, 9740), (4870, 6554)]