81358760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{373}}^1$

素因数の和:451

約数の個数: 128

約数和(自身を含む): 226195200

約数和(自身を除く): 144836440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 41, 56, 70, 76, 82, 95, 133, 140, 152, 164, 190, 205, 266, 280, 287, 328, 373, 380, 410, 532, 574, 665, 746, 760, 779, 820, 1064, 1148, 1330, 1435, 1492, 1558, 1640, 1865, 2296, 2611, 2660, 2870, 2984, 3116, 3730, 3895, 5222, 5320, 5453, 5740, 6232, 7087, 7460, 7790, 10444, 10906, 11480, 13055, 14174, 14920, 15293, 15580, 20888, 21812, 26110, 27265, 28348, 30586, 31160, 35435, 43624, 49609, 52220, 54530, 56696, 61172, 70870, 76465, 99218, 104440, 107051, 109060, 122344, 141740, 152930, 198436, 214102, 218120, 248045, 283480, 290567, 305860, 396872, 428204, 496090, 535255, 581134, 611720, 856408, 992180, 1070510, 1162268, 1452835, 1984360, 2033969, 2141020, 2324536, 2905670, 4067938, 4282040, 5811340, 8135876, 10169845, 11622680, 16271752, 20339690, 40679380, 81358760]

約数ペア:

[(1, 81358760), (2, 40679380), (4, 20339690), (5, 16271752), (7, 11622680), (8, 10169845), (10, 8135876), (14, 5811340), (19, 4282040), (20, 4067938), (28, 2905670), (35, 2324536), (38, 2141020), (40, 2033969), (41, 1984360), (56, 1452835), (70, 1162268), (76, 1070510), (82, 992180), (95, 856408), (133, 611720), (140, 581134), (152, 535255), (164, 496090), (190, 428204), (205, 396872), (266, 305860), (280, 290567), (287, 283480), (328, 248045), (373, 218120), (380, 214102), (410, 198436), (532, 152930), (574, 141740), (665, 122344), (746, 109060), (760, 107051), (779, 104440), (820, 99218), (1064, 76465), (1148, 70870), (1330, 61172), (1435, 56696), (1492, 54530), (1558, 52220), (1640, 49609), (1865, 43624), (2296, 35435), (2611, 31160), (2660, 30586), (2870, 28348), (2984, 27265), (3116, 26110), (3730, 21812), (3895, 20888), (5222, 15580), (5320, 15293), (5453, 14920), (5740, 14174), (6232, 13055), (7087, 11480), (7460, 10906), (7790, 10444)]