20017560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{1559}}^1$

素因数の和:1680

約数の個数: 64

約数和(自身を含む): 60652800

約数和(自身を除く): 40635240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 107, 120, 214, 321, 428, 535, 642, 856, 1070, 1284, 1559, 1605, 2140, 2568, 3118, 3210, 4280, 4677, 6236, 6420, 7795, 9354, 12472, 12840, 15590, 18708, 23385, 31180, 37416, 46770, 62360, 93540, 166813, 187080, 333626, 500439, 667252, 834065, 1000878, 1334504, 1668130, 2001756, 2502195, 3336260, 4003512, 5004390, 6672520, 10008780, 20017560]

約数ペア:

[(1, 20017560), (2, 10008780), (3, 6672520), (4, 5004390), (5, 4003512), (6, 3336260), (8, 2502195), (10, 2001756), (12, 1668130), (15, 1334504), (20, 1000878), (24, 834065), (30, 667252), (40, 500439), (60, 333626), (107, 187080), (120, 166813), (214, 93540), (321, 62360), (428, 46770), (535, 37416), (642, 31180), (856, 23385), (1070, 18708), (1284, 15590), (1559, 12840), (1605, 12472), (2140, 9354), (2568, 7795), (3118, 6420), (3210, 6236), (4280, 4677)]