20280676

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{1579}}^1$

素因数の和:1628

約数の個数: 36

約数和(自身を含む): 40479600

約数和(自身を除く): 20198924

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 169, 247, 338, 494, 676, 988, 1579, 3158, 3211, 6316, 6422, 12844, 20527, 30001, 41054, 60002, 82108, 120004, 266851, 390013, 533702, 780026, 1067404, 1560052, 5070169, 10140338, 20280676]

約数ペア:

[(1, 20280676), (2, 10140338), (4, 5070169), (13, 1560052), (19, 1067404), (26, 780026), (38, 533702), (52, 390013), (76, 266851), (169, 120004), (247, 82108), (338, 60002), (494, 41054), (676, 30001), (988, 20527), (1579, 12844), (3158, 6422), (3211, 6316)]