20180275

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{461}}^1$

素因数の和:591

約数の個数: 24

約数和(自身を含む): 26810784

約数和(自身を除く): 6630509

約数列:

[1, 5, 17, 25, 85, 103, 425, 461, 515, 1751, 2305, 2575, 7837, 8755, 11525, 39185, 43775, 47483, 195925, 237415, 807211, 1187075, 4036055, 20180275]

約数ペア:

[(1, 20180275), (5, 4036055), (17, 1187075), (25, 807211), (85, 237415), (103, 195925), (425, 47483), (461, 43775), (515, 39185), (1751, 11525), (2305, 8755), (2575, 7837)]