210249260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{808651}}^1$

素因数の和:808673

約数の個数: 24

約数和(自身を含む): 475487376

約数和(自身を除く): 265238116

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 808651, 1617302, 3234604, 4043255, 8086510, 10512463, 16173020, 21024926, 42049852, 52562315, 105124630, 210249260]

約数ペア:

[(1, 210249260), (2, 105124630), (4, 52562315), (5, 42049852), (10, 21024926), (13, 16173020), (20, 10512463), (26, 8086510), (52, 4043255), (65, 3234604), (130, 1617302), (260, 808651)]