212171120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{1699}}^1$

素因数の和:1942

約数の個数: 80

約数和(自身を含む): 566630400

約数和(自身を除く): 354459280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 223, 280, 446, 560, 892, 1115, 1561, 1699, 1784, 2230, 3122, 3398, 3568, 4460, 6244, 6796, 7805, 8495, 8920, 11893, 12488, 13592, 15610, 16990, 17840, 23786, 24976, 27184, 31220, 33980, 47572, 59465, 62440, 67960, 95144, 118930, 124880, 135920, 190288, 237860, 378877, 475720, 757754, 951440, 1515508, 1894385, 2652139, 3031016, 3788770, 5304278, 6062032, 7577540, 10608556, 13260695, 15155080, 21217112, 26521390, 30310160, 42434224, 53042780, 106085560, 212171120]

約数ペア:

[(1, 212171120), (2, 106085560), (4, 53042780), (5, 42434224), (7, 30310160), (8, 26521390), (10, 21217112), (14, 15155080), (16, 13260695), (20, 10608556), (28, 7577540), (35, 6062032), (40, 5304278), (56, 3788770), (70, 3031016), (80, 2652139), (112, 1894385), (140, 1515508), (223, 951440), (280, 757754), (446, 475720), (560, 378877), (892, 237860), (1115, 190288), (1561, 135920), (1699, 124880), (1784, 118930), (2230, 95144), (3122, 67960), (3398, 62440), (3568, 59465), (4460, 47572), (6244, 33980), (6796, 31220), (7805, 27184), (8495, 24976), (8920, 23786), (11893, 17840), (12488, 16990), (13592, 15610)]