25012840

素因数分解:

$2^3\times 5^1\times {\mathrm{631}}^1\times {\mathrm{991}}^1$

素因数の和:1633

約数の個数: 32

約数和(自身を含む): 56424960

約数和(自身を除く): 31412120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 631, 991, 1262, 1982, 2524, 3155, 3964, 4955, 5048, 6310, 7928, 9910, 12620, 19820, 25240, 39640, 625321, 1250642, 2501284, 3126605, 5002568, 6253210, 12506420, 25012840]

約数ペア:

[(1, 25012840), (2, 12506420), (4, 6253210), (5, 5002568), (8, 3126605), (10, 2501284), (20, 1250642), (40, 625321), (631, 39640), (991, 25240), (1262, 19820), (1982, 12620), (2524, 9910), (3155, 7928), (3964, 6310), (4955, 5048)]