20081022

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{2549}}^1$

素因数の和:2668

約数の個数: 32

約数和(自身を含む): 43696800

約数和(自身を除く): 23615778

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 101, 202, 303, 606, 1313, 2549, 2626, 3939, 5098, 7647, 7878, 15294, 33137, 66274, 99411, 198822, 257449, 514898, 772347, 1544694, 3346837, 6693674, 10040511, 20081022]

約数ペア:

[(1, 20081022), (2, 10040511), (3, 6693674), (6, 3346837), (13, 1544694), (26, 772347), (39, 514898), (78, 257449), (101, 198822), (202, 99411), (303, 66274), (606, 33137), (1313, 15294), (2549, 7878), (2626, 7647), (3939, 5098)]