28209170

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{239}}^1$

素因数の和:323

約数の個数: 64

約数和(自身を含む): 59097600

約数和(自身を除く): 30888430

約数列:

[1, 2, 5, 10, 11, 22, 29, 37, 55, 58, 74, 110, 145, 185, 239, 290, 319, 370, 407, 478, 638, 814, 1073, 1195, 1595, 2035, 2146, 2390, 2629, 3190, 4070, 5258, 5365, 6931, 8843, 10730, 11803, 13145, 13862, 17686, 23606, 26290, 34655, 44215, 59015, 69310, 76241, 88430, 97273, 118030, 152482, 194546, 256447, 381205, 486365, 512894, 762410, 972730, 1282235, 2564470, 2820917, 5641834, 14104585, 28209170]

約数ペア:

[(1, 28209170), (2, 14104585), (5, 5641834), (10, 2820917), (11, 2564470), (22, 1282235), (29, 972730), (37, 762410), (55, 512894), (58, 486365), (74, 381205), (110, 256447), (145, 194546), (185, 152482), (239, 118030), (290, 97273), (319, 88430), (370, 76241), (407, 69310), (478, 59015), (638, 44215), (814, 34655), (1073, 26290), (1195, 23606), (1595, 17686), (2035, 13862), (2146, 13145), (2390, 11803), (2629, 10730), (3190, 8843), (4070, 6931), (5258, 5365)]