15988180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61493}}^1$

素因数の和:61515

約数の個数: 24

約数和(自身を含む): 36158472

約数和(自身を除く): 20170292

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 61493, 122986, 245972, 307465, 614930, 799409, 1229860, 1598818, 3197636, 3997045, 7994090, 15988180]

約数ペア:

[(1, 15988180), (2, 7994090), (4, 3997045), (5, 3197636), (10, 1598818), (13, 1229860), (20, 799409), (26, 614930), (52, 307465), (65, 245972), (130, 122986), (260, 61493)]