85481720

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{1109}}^1$

素因数の和:1208

約数の個数: 64

約数和(自身を含む): 201398400

約数和(自身を除く): 115916680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 47, 82, 94, 164, 188, 205, 235, 328, 376, 410, 470, 820, 940, 1109, 1640, 1880, 1927, 2218, 3854, 4436, 5545, 7708, 8872, 9635, 11090, 15416, 19270, 22180, 38540, 44360, 45469, 52123, 77080, 90938, 104246, 181876, 208492, 227345, 260615, 363752, 416984, 454690, 521230, 909380, 1042460, 1818760, 2084920, 2137043, 4274086, 8548172, 10685215, 17096344, 21370430, 42740860, 85481720]

約数ペア:

[(1, 85481720), (2, 42740860), (4, 21370430), (5, 17096344), (8, 10685215), (10, 8548172), (20, 4274086), (40, 2137043), (41, 2084920), (47, 1818760), (82, 1042460), (94, 909380), (164, 521230), (188, 454690), (205, 416984), (235, 363752), (328, 260615), (376, 227345), (410, 208492), (470, 181876), (820, 104246), (940, 90938), (1109, 77080), (1640, 52123), (1880, 45469), (1927, 44360), (2218, 38540), (3854, 22180), (4436, 19270), (5545, 15416), (7708, 11090), (8872, 9635)]