1625240

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{991}}^1$

素因数の和:1043

約数の個数: 32

約数和(自身を含む): 3749760

約数和(自身を除く): 2124520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 991, 1640, 1982, 3964, 4955, 7928, 9910, 19820, 39640, 40631, 81262, 162524, 203155, 325048, 406310, 812620, 1625240]

約数ペア:

[(1, 1625240), (2, 812620), (4, 406310), (5, 325048), (8, 203155), (10, 162524), (20, 81262), (40, 40631), (41, 39640), (82, 19820), (164, 9910), (205, 7928), (328, 4955), (410, 3964), (820, 1982), (991, 1640)]