85417520

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{347}}^1$

素因数の和:558

約数の個数: 80

約数和(自身を含む): 212048928

約数和(自身を除く): 126631408

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 181, 272, 340, 347, 362, 680, 694, 724, 905, 1360, 1388, 1448, 1735, 1810, 2776, 2896, 3077, 3470, 3620, 5552, 5899, 6154, 6940, 7240, 11798, 12308, 13880, 14480, 15385, 23596, 24616, 27760, 29495, 30770, 47192, 49232, 58990, 61540, 62807, 94384, 117980, 123080, 125614, 235960, 246160, 251228, 314035, 471920, 502456, 628070, 1004912, 1067719, 1256140, 2135438, 2512280, 4270876, 5024560, 5338595, 8541752, 10677190, 17083504, 21354380, 42708760, 85417520]

約数ペア:

[(1, 85417520), (2, 42708760), (4, 21354380), (5, 17083504), (8, 10677190), (10, 8541752), (16, 5338595), (17, 5024560), (20, 4270876), (34, 2512280), (40, 2135438), (68, 1256140), (80, 1067719), (85, 1004912), (136, 628070), (170, 502456), (181, 471920), (272, 314035), (340, 251228), (347, 246160), (362, 235960), (680, 125614), (694, 123080), (724, 117980), (905, 94384), (1360, 62807), (1388, 61540), (1448, 58990), (1735, 49232), (1810, 47192), (2776, 30770), (2896, 29495), (3077, 27760), (3470, 24616), (3620, 23596), (5552, 15385), (5899, 14480), (6154, 13880), (6940, 12308), (7240, 11798)]