17188840

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{223}}^1$

素因数の和:322

約数の個数: 64

約数和(自身を含む): 40642560

約数和(自身を除く): 23453720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 47, 82, 94, 164, 188, 205, 223, 235, 328, 376, 410, 446, 470, 820, 892, 940, 1115, 1640, 1784, 1880, 1927, 2230, 3854, 4460, 7708, 8920, 9143, 9635, 10481, 15416, 18286, 19270, 20962, 36572, 38540, 41924, 45715, 52405, 73144, 77080, 83848, 91430, 104810, 182860, 209620, 365720, 419240, 429721, 859442, 1718884, 2148605, 3437768, 4297210, 8594420, 17188840]

約数ペア:

[(1, 17188840), (2, 8594420), (4, 4297210), (5, 3437768), (8, 2148605), (10, 1718884), (20, 859442), (40, 429721), (41, 419240), (47, 365720), (82, 209620), (94, 182860), (164, 104810), (188, 91430), (205, 83848), (223, 77080), (235, 73144), (328, 52405), (376, 45715), (410, 41924), (446, 38540), (470, 36572), (820, 20962), (892, 19270), (940, 18286), (1115, 15416), (1640, 10481), (1784, 9635), (1880, 9143), (1927, 8920), (2230, 7708), (3854, 4460)]