1636704980

素因数分解:

$2^2\times 5^1\times {\mathrm{11987}}^1\times {\mathrm{6827}}^1$

素因数の和:18823

約数の個数: 24

約数和(自身を含む): 3437870688

約数和(自身を除く): 1801165708

約数列:

[1, 2, 4, 5, 10, 20, 6827, 11987, 13654, 23974, 27308, 34135, 47948, 59935, 68270, 119870, 136540, 239740, 81835249, 163670498, 327340996, 409176245, 818352490, 1636704980]

約数ペア:

[(1, 1636704980), (2, 818352490), (4, 409176245), (5, 327340996), (10, 163670498), (20, 81835249), (6827, 239740), (11987, 136540), (13654, 119870), (23974, 68270), (27308, 59935), (34135, 47948)]