20553420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{509}}^1\times {\mathrm{673}}^1$

素因数の和:1194

約数の個数: 48

約数和(自身を含む): 57748320

約数和(自身を除く): 37194900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 509, 673, 1018, 1346, 1527, 2019, 2036, 2545, 2692, 3054, 3365, 4038, 5090, 6108, 6730, 7635, 8076, 10095, 10180, 13460, 15270, 20190, 30540, 40380, 342557, 685114, 1027671, 1370228, 1712785, 2055342, 3425570, 4110684, 5138355, 6851140, 10276710, 20553420]

約数ペア:

[(1, 20553420), (2, 10276710), (3, 6851140), (4, 5138355), (5, 4110684), (6, 3425570), (10, 2055342), (12, 1712785), (15, 1370228), (20, 1027671), (30, 685114), (60, 342557), (509, 40380), (673, 30540), (1018, 20190), (1346, 15270), (1527, 13460), (2019, 10180), (2036, 10095), (2545, 8076), (2692, 7635), (3054, 6730), (3365, 6108), (4038, 5090)]