20068005

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{419}}^1$

素因数の和:561

約数の個数: 32

約数和(自身を含む): 33546240

約数和(自身を除く): 13478235

約数列:

[1, 3, 5, 15, 31, 93, 103, 155, 309, 419, 465, 515, 1257, 1545, 2095, 3193, 6285, 9579, 12989, 15965, 38967, 43157, 47895, 64945, 129471, 194835, 215785, 647355, 1337867, 4013601, 6689335, 20068005]

約数ペア:

[(1, 20068005), (3, 6689335), (5, 4013601), (15, 1337867), (31, 647355), (93, 215785), (103, 194835), (155, 129471), (309, 64945), (419, 47895), (465, 43157), (515, 38967), (1257, 15965), (1545, 12989), (2095, 9579), (3193, 6285)]