19820520

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{55057}}^1$

素因数の和:55074

約数の個数: 48

約数和(自身を含む): 64417860

約数和(自身を除く): 44597340

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 55057, 110114, 165171, 220228, 275285, 330342, 440456, 495513, 550570, 660684, 825855, 991026, 1101140, 1321368, 1651710, 1982052, 2202280, 2477565, 3303420, 3964104, 4955130, 6606840, 9910260, 19820520]

約数ペア:

[(1, 19820520), (2, 9910260), (3, 6606840), (4, 4955130), (5, 3964104), (6, 3303420), (8, 2477565), (9, 2202280), (10, 1982052), (12, 1651710), (15, 1321368), (18, 1101140), (20, 991026), (24, 825855), (30, 660684), (36, 550570), (40, 495513), (45, 440456), (60, 330342), (72, 275285), (90, 220228), (120, 165171), (180, 110114), (360, 55057)]