8857340

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{239}}^1$

素因数の和:374

約数の個数: 48

約数和(自身を含む): 19958400

約数和(自身を除く): 11101060

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 109, 170, 218, 239, 340, 436, 478, 545, 956, 1090, 1195, 1853, 2180, 2390, 3706, 4063, 4780, 7412, 8126, 9265, 16252, 18530, 20315, 26051, 37060, 40630, 52102, 81260, 104204, 130255, 260510, 442867, 521020, 885734, 1771468, 2214335, 4428670, 8857340]

約数ペア:

[(1, 8857340), (2, 4428670), (4, 2214335), (5, 1771468), (10, 885734), (17, 521020), (20, 442867), (34, 260510), (68, 130255), (85, 104204), (109, 81260), (170, 52102), (218, 40630), (239, 37060), (340, 26051), (436, 20315), (478, 18530), (545, 16252), (956, 9265), (1090, 8126), (1195, 7412), (1853, 4780), (2180, 4063), (2390, 3706)]