12218120

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1$

素因数の和:222

約数の個数: 64

約数和(自身を含む): 28788480

約数和(自身を除く): 16570360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 67, 94, 97, 134, 188, 194, 235, 268, 335, 376, 388, 470, 485, 536, 670, 776, 940, 970, 1340, 1880, 1940, 2680, 3149, 3880, 4559, 6298, 6499, 9118, 12596, 12998, 15745, 18236, 22795, 25192, 25996, 31490, 32495, 36472, 45590, 51992, 62980, 64990, 91180, 125960, 129980, 182360, 259960, 305453, 610906, 1221812, 1527265, 2443624, 3054530, 6109060, 12218120]

約数ペア:

[(1, 12218120), (2, 6109060), (4, 3054530), (5, 2443624), (8, 1527265), (10, 1221812), (20, 610906), (40, 305453), (47, 259960), (67, 182360), (94, 129980), (97, 125960), (134, 91180), (188, 64990), (194, 62980), (235, 51992), (268, 45590), (335, 36472), (376, 32495), (388, 31490), (470, 25996), (485, 25192), (536, 22795), (670, 18236), (776, 15745), (940, 12998), (970, 12596), (1340, 9118), (1880, 6499), (1940, 6298), (2680, 4559), (3149, 3880)]