261085860

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{353}}^1\times {\mathrm{587}}^1$

素因数の和:962

約数の個数: 144

約数和(自身を含む): 909207936

約数和(自身を除く): 648122076

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 353, 420, 587, 630, 706, 1059, 1174, 1260, 1412, 1761, 1765, 2118, 2348, 2471, 2935, 3177, 3522, 3530, 4109, 4236, 4942, 5283, 5295, 5870, 6354, 7044, 7060, 7413, 8218, 8805, 9884, 10566, 10590, 11740, 12327, 12355, 12708, 14826, 15885, 16436, 17610, 20545, 21132, 21180, 22239, 24654, 24710, 26415, 29652, 31770, 35220, 36981, 37065, 41090, 44478, 49308, 49420, 52830, 61635, 63540, 73962, 74130, 82180, 88956, 105660, 111195, 123270, 147924, 148260, 184905, 207211, 222390, 246540, 369810, 414422, 444780, 621633, 739620, 828844, 1036055, 1243266, 1450477, 1864899, 2072110, 2486532, 2900954, 3108165, 3729798, 4144220, 4351431, 5801908, 6216330, 7252385, 7459596, 8702862, 9324495, 12432660, 13054293, 14504770, 17405724, 18648990, 21757155, 26108586, 29009540, 37297980, 43514310, 52217172, 65271465, 87028620, 130542930, 261085860]

約数ペア:

[(1, 261085860), (2, 130542930), (3, 87028620), (4, 65271465), (5, 52217172), (6, 43514310), (7, 37297980), (9, 29009540), (10, 26108586), (12, 21757155), (14, 18648990), (15, 17405724), (18, 14504770), (20, 13054293), (21, 12432660), (28, 9324495), (30, 8702862), (35, 7459596), (36, 7252385), (42, 6216330), (45, 5801908), (60, 4351431), (63, 4144220), (70, 3729798), (84, 3108165), (90, 2900954), (105, 2486532), (126, 2072110), (140, 1864899), (180, 1450477), (210, 1243266), (252, 1036055), (315, 828844), (353, 739620), (420, 621633), (587, 444780), (630, 414422), (706, 369810), (1059, 246540), (1174, 222390), (1260, 207211), (1412, 184905), (1761, 148260), (1765, 147924), (2118, 123270), (2348, 111195), (2471, 105660), (2935, 88956), (3177, 82180), (3522, 74130), (3530, 73962), (4109, 63540), (4236, 61635), (4942, 52830), (5283, 49420), (5295, 49308), (5870, 44478), (6354, 41090), (7044, 37065), (7060, 36981), (7413, 35220), (8218, 31770), (8805, 29652), (9884, 26415), (10566, 24710), (10590, 24654), (11740, 22239), (12327, 21180), (12355, 21132), (12708, 20545), (14826, 17610), (15885, 16436)]