128697985

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{409}}^1$

素因数の和:577

約数の個数: 32

約数和(自身を含む): 171924480

約数和(自身を除く): 43226495

約数列:

[1, 5, 13, 47, 65, 103, 235, 409, 515, 611, 1339, 2045, 3055, 4841, 5317, 6695, 19223, 24205, 26585, 42127, 62933, 96115, 210635, 249899, 314665, 547651, 1249495, 1979969, 2738255, 9899845, 25739597, 128697985]

約数ペア:

[(1, 128697985), (5, 25739597), (13, 9899845), (47, 2738255), (65, 1979969), (103, 1249495), (235, 547651), (409, 314665), (515, 249899), (611, 210635), (1339, 96115), (2045, 62933), (3055, 42127), (4841, 26585), (5317, 24205), (6695, 19223)]