20094440

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{6359}}^1$

素因数の和:6449

約数の個数: 32

約数和(自身を含む): 45792000

約数和(自身を除く): 25697560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 6359, 12718, 25436, 31795, 50872, 63590, 127180, 254360, 502361, 1004722, 2009444, 2511805, 4018888, 5023610, 10047220, 20094440]

約数ペア:

[(1, 20094440), (2, 10047220), (4, 5023610), (5, 4018888), (8, 2511805), (10, 2009444), (20, 1004722), (40, 502361), (79, 254360), (158, 127180), (316, 63590), (395, 50872), (632, 31795), (790, 25436), (1580, 12718), (3160, 6359)]