1539640

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{631}}^1$

素因数の和:703

約数の個数: 32

約数和(自身を含む): 3526560

約数和(自身を除く): 1986920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 631, 1220, 1262, 2440, 2524, 3155, 5048, 6310, 12620, 25240, 38491, 76982, 153964, 192455, 307928, 384910, 769820, 1539640]

約数ペア:

[(1, 1539640), (2, 769820), (4, 384910), (5, 307928), (8, 192455), (10, 153964), (20, 76982), (40, 38491), (61, 25240), (122, 12620), (244, 6310), (305, 5048), (488, 3155), (610, 2524), (631, 2440), (1220, 1262)]