661001955

素因数分解:

$3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{839}}^1\times {\mathrm{991}}^1$

素因数の和:1891

約数の個数: 32

約数和(自身を含む): 1079930880

約数和(自身を除く): 418928925

約数列:

[1, 3, 5, 15, 53, 159, 265, 795, 839, 991, 2517, 2973, 4195, 4955, 12585, 14865, 44467, 52523, 133401, 157569, 222335, 262615, 667005, 787845, 831449, 2494347, 4157245, 12471735, 44066797, 132200391, 220333985, 661001955]

約数ペア:

[(1, 661001955), (3, 220333985), (5, 132200391), (15, 44066797), (53, 12471735), (159, 4157245), (265, 2494347), (795, 831449), (839, 787845), (991, 667005), (2517, 262615), (2973, 222335), (4195, 157569), (4955, 133401), (12585, 52523), (14865, 44467)]