30820720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1171}}^1$

素因数の和:1238

約数の個数: 80

約数和(自身を含む): 83708928

約数和(自身を除く): 52888208

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 47, 56, 70, 80, 94, 112, 140, 188, 235, 280, 329, 376, 470, 560, 658, 752, 940, 1171, 1316, 1645, 1880, 2342, 2632, 3290, 3760, 4684, 5264, 5855, 6580, 8197, 9368, 11710, 13160, 16394, 18736, 23420, 26320, 32788, 40985, 46840, 55037, 65576, 81970, 93680, 110074, 131152, 163940, 220148, 275185, 327880, 385259, 440296, 550370, 655760, 770518, 880592, 1100740, 1541036, 1926295, 2201480, 3082072, 3852590, 4402960, 6164144, 7705180, 15410360, 30820720]

約数ペア:

[(1, 30820720), (2, 15410360), (4, 7705180), (5, 6164144), (7, 4402960), (8, 3852590), (10, 3082072), (14, 2201480), (16, 1926295), (20, 1541036), (28, 1100740), (35, 880592), (40, 770518), (47, 655760), (56, 550370), (70, 440296), (80, 385259), (94, 327880), (112, 275185), (140, 220148), (188, 163940), (235, 131152), (280, 110074), (329, 93680), (376, 81970), (470, 65576), (560, 55037), (658, 46840), (752, 40985), (940, 32788), (1171, 26320), (1316, 23420), (1645, 18736), (1880, 16394), (2342, 13160), (2632, 11710), (3290, 9368), (3760, 8197), (4684, 6580), (5264, 5855)]