209645360

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{1109}}^1$

素因数の和:1278

約数の個数: 80

約数和(自身を含む): 520279200

約数和(自身を除く): 310633840

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 139, 170, 272, 278, 340, 556, 680, 695, 1109, 1112, 1360, 1390, 2218, 2224, 2363, 2780, 4436, 4726, 5545, 5560, 8872, 9452, 11090, 11120, 11815, 17744, 18853, 18904, 22180, 23630, 37706, 37808, 44360, 47260, 75412, 88720, 94265, 94520, 150824, 154151, 188530, 189040, 301648, 308302, 377060, 616604, 754120, 770755, 1233208, 1508240, 1541510, 2466416, 2620567, 3083020, 5241134, 6166040, 10482268, 12332080, 13102835, 20964536, 26205670, 41929072, 52411340, 104822680, 209645360]

約数ペア:

[(1, 209645360), (2, 104822680), (4, 52411340), (5, 41929072), (8, 26205670), (10, 20964536), (16, 13102835), (17, 12332080), (20, 10482268), (34, 6166040), (40, 5241134), (68, 3083020), (80, 2620567), (85, 2466416), (136, 1541510), (139, 1508240), (170, 1233208), (272, 770755), (278, 754120), (340, 616604), (556, 377060), (680, 308302), (695, 301648), (1109, 189040), (1112, 188530), (1360, 154151), (1390, 150824), (2218, 94520), (2224, 94265), (2363, 88720), (2780, 75412), (4436, 47260), (4726, 44360), (5545, 37808), (5560, 37706), (8872, 23630), (9452, 22180), (11090, 18904), (11120, 18853), (11815, 17744)]