128668855

素因数分解:

$5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{211}}^1$

素因数の和:380

約数の個数: 48

約数和(自身を含む): 191410560

約数和(自身を除く): 62741705

約数列:

[1, 5, 7, 19, 35, 49, 95, 131, 133, 211, 245, 655, 665, 917, 931, 1055, 1477, 2489, 4009, 4585, 4655, 6419, 7385, 10339, 12445, 17423, 20045, 27641, 28063, 32095, 51695, 87115, 121961, 138205, 140315, 193487, 196441, 525179, 609805, 967435, 982205, 1354409, 2625895, 3676253, 6772045, 18381265, 25733771, 128668855]

約数ペア:

[(1, 128668855), (5, 25733771), (7, 18381265), (19, 6772045), (35, 3676253), (49, 2625895), (95, 1354409), (131, 982205), (133, 967435), (211, 609805), (245, 525179), (655, 196441), (665, 193487), (917, 140315), (931, 138205), (1055, 121961), (1477, 87115), (2489, 51695), (4009, 32095), (4585, 28063), (4655, 27641), (6419, 20045), (7385, 17423), (10339, 12445)]