220857988

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{239}}^1\times {\mathrm{1367}}^1$

素因数の和:1636

約数の個数: 36

約数和(自身を含む): 420577920

約数和(自身を除く): 199719932

約数列:

[1, 2, 4, 13, 26, 52, 169, 239, 338, 478, 676, 956, 1367, 2734, 3107, 5468, 6214, 12428, 17771, 35542, 40391, 71084, 80782, 161564, 231023, 326713, 462046, 653426, 924092, 1306852, 4247269, 8494538, 16989076, 55214497, 110428994, 220857988]

約数ペア:

[(1, 220857988), (2, 110428994), (4, 55214497), (13, 16989076), (26, 8494538), (52, 4247269), (169, 1306852), (239, 924092), (338, 653426), (478, 462046), (676, 326713), (956, 231023), (1367, 161564), (2734, 80782), (3107, 71084), (5468, 40391), (6214, 35542), (12428, 17771)]