205546420

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{144751}}^1$

素因数の和:144831

約数の個数: 24

約数和(自身を含む): 437730048

約数和(自身を除く): 232183628

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 144751, 289502, 579004, 723755, 1447510, 2895020, 10277321, 20554642, 41109284, 51386605, 102773210, 205546420]

約数ペア:

[(1, 205546420), (2, 102773210), (4, 51386605), (5, 41109284), (10, 20554642), (20, 10277321), (71, 2895020), (142, 1447510), (284, 723755), (355, 579004), (710, 289502), (1420, 144751)]