1290431855

素因数分解:

$5^1\times {\mathrm{263}}^1\times {\mathrm{809}}^1\times {\mathrm{1213}}^1$

素因数の和:2290

約数の個数: 16

約数和(自身を含む): 1557610560

約数和(自身を除く): 267178705

約数列:

[1, 5, 263, 809, 1213, 1315, 4045, 6065, 212767, 319019, 981317, 1063835, 1595095, 4906585, 258086371, 1290431855]

約数ペア:

[(1, 1290431855), (5, 258086371), (263, 4906585), (809, 1595095), (1213, 1063835), (1315, 981317), (4045, 319019), (6065, 212767)]