20992080

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{1861}}^1$

素因数の和:1924

約数の個数: 80

約数和(自身を含む): 66495744

約数和(自身を除く): 45503664

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 47, 48, 60, 80, 94, 120, 141, 188, 235, 240, 282, 376, 470, 564, 705, 752, 940, 1128, 1410, 1861, 1880, 2256, 2820, 3722, 3760, 5583, 5640, 7444, 9305, 11166, 11280, 14888, 18610, 22332, 27915, 29776, 37220, 44664, 55830, 74440, 87467, 89328, 111660, 148880, 174934, 223320, 262401, 349868, 437335, 446640, 524802, 699736, 874670, 1049604, 1312005, 1399472, 1749340, 2099208, 2624010, 3498680, 4198416, 5248020, 6997360, 10496040, 20992080]

約数ペア:

[(1, 20992080), (2, 10496040), (3, 6997360), (4, 5248020), (5, 4198416), (6, 3498680), (8, 2624010), (10, 2099208), (12, 1749340), (15, 1399472), (16, 1312005), (20, 1049604), (24, 874670), (30, 699736), (40, 524802), (47, 446640), (48, 437335), (60, 349868), (80, 262401), (94, 223320), (120, 174934), (141, 148880), (188, 111660), (235, 89328), (240, 87467), (282, 74440), (376, 55830), (470, 44664), (564, 37220), (705, 29776), (752, 27915), (940, 22332), (1128, 18610), (1410, 14888), (1861, 11280), (1880, 11166), (2256, 9305), (2820, 7444), (3722, 5640), (3760, 5583)]