84870820

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:205

約数の個数: 96

約数和(自身を含む): 195592320

約数和(自身を除く): 110721500

約数列:

[1, 2, 4, 5, 10, 20, 29, 41, 43, 58, 82, 83, 86, 116, 145, 164, 166, 172, 205, 215, 290, 332, 410, 415, 430, 580, 820, 830, 860, 1189, 1247, 1660, 1763, 2378, 2407, 2494, 3403, 3526, 3569, 4756, 4814, 4988, 5945, 6235, 6806, 7052, 7138, 8815, 9628, 11890, 12035, 12470, 13612, 14276, 17015, 17630, 17845, 23780, 24070, 24940, 34030, 35260, 35690, 48140, 51127, 68060, 71380, 98687, 102254, 103501, 146329, 197374, 204508, 207002, 255635, 292658, 394748, 414004, 493435, 511270, 517505, 585316, 731645, 986870, 1022540, 1035010, 1463290, 1973740, 2070020, 2926580, 4243541, 8487082, 16974164, 21217705, 42435410, 84870820]

約数ペア:

[(1, 84870820), (2, 42435410), (4, 21217705), (5, 16974164), (10, 8487082), (20, 4243541), (29, 2926580), (41, 2070020), (43, 1973740), (58, 1463290), (82, 1035010), (83, 1022540), (86, 986870), (116, 731645), (145, 585316), (164, 517505), (166, 511270), (172, 493435), (205, 414004), (215, 394748), (290, 292658), (332, 255635), (410, 207002), (415, 204508), (430, 197374), (580, 146329), (820, 103501), (830, 102254), (860, 98687), (1189, 71380), (1247, 68060), (1660, 51127), (1763, 48140), (2378, 35690), (2407, 35260), (2494, 34030), (3403, 24940), (3526, 24070), (3569, 23780), (4756, 17845), (4814, 17630), (4988, 17015), (5945, 14276), (6235, 13612), (6806, 12470), (7052, 12035), (7138, 11890), (8815, 9628)]