82740560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2081}}^1$

素因数の和:2172

約数の個数: 80

約数和(自身を含む): 223057152

約数和(自身を除く): 140316592

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 71, 80, 112, 140, 142, 280, 284, 355, 497, 560, 568, 710, 994, 1136, 1420, 1988, 2081, 2485, 2840, 3976, 4162, 4970, 5680, 7952, 8324, 9940, 10405, 14567, 16648, 19880, 20810, 29134, 33296, 39760, 41620, 58268, 72835, 83240, 116536, 145670, 147751, 166480, 233072, 291340, 295502, 582680, 591004, 738755, 1034257, 1165360, 1182008, 1477510, 2068514, 2364016, 2955020, 4137028, 5171285, 5910040, 8274056, 10342570, 11820080, 16548112, 20685140, 41370280, 82740560]

約数ペア:

[(1, 82740560), (2, 41370280), (4, 20685140), (5, 16548112), (7, 11820080), (8, 10342570), (10, 8274056), (14, 5910040), (16, 5171285), (20, 4137028), (28, 2955020), (35, 2364016), (40, 2068514), (56, 1477510), (70, 1182008), (71, 1165360), (80, 1034257), (112, 738755), (140, 591004), (142, 582680), (280, 295502), (284, 291340), (355, 233072), (497, 166480), (560, 147751), (568, 145670), (710, 116536), (994, 83240), (1136, 72835), (1420, 58268), (1988, 41620), (2081, 39760), (2485, 33296), (2840, 29134), (3976, 20810), (4162, 19880), (4970, 16648), (5680, 14567), (7952, 10405), (8324, 9940)]