1320247750

素因数分解:

$2^1\times 5^3\times {\mathrm{1279}}^1\times {\mathrm{4129}}^1$

素因数の和:5425

約数の個数: 32

約数和(自身を含む): 2474035200

約数和(自身を除く): 1153787450

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 1279, 2558, 4129, 6395, 8258, 12790, 20645, 31975, 41290, 63950, 103225, 159875, 206450, 319750, 516125, 1032250, 5280991, 10561982, 26404955, 52809910, 132024775, 264049550, 660123875, 1320247750]

約数ペア:

[(1, 1320247750), (2, 660123875), (5, 264049550), (10, 132024775), (25, 52809910), (50, 26404955), (125, 10561982), (250, 5280991), (1279, 1032250), (2558, 516125), (4129, 319750), (6395, 206450), (8258, 159875), (12790, 103225), (20645, 63950), (31975, 41290)]