640663344

素因数分解:

$2^4\times 3^4\times {\mathrm{23}}^1\times {\mathrm{21493}}^1$

素因数の和:21536

約数の個数: 100

約数和(自身を含む): 1934975856

約数和(自身を除く): 1294312512

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 27, 36, 46, 48, 54, 69, 72, 81, 92, 108, 138, 144, 162, 184, 207, 216, 276, 324, 368, 414, 432, 552, 621, 648, 828, 1104, 1242, 1296, 1656, 1863, 2484, 3312, 3726, 4968, 7452, 9936, 14904, 21493, 29808, 42986, 64479, 85972, 128958, 171944, 193437, 257916, 343888, 386874, 494339, 515832, 580311, 773748, 988678, 1031664, 1160622, 1483017, 1547496, 1740933, 1977356, 2321244, 2966034, 3094992, 3481866, 3954712, 4449051, 4642488, 5932068, 6963732, 7909424, 8898102, 9284976, 11864136, 13347153, 13927464, 17796204, 23728272, 26694306, 27854928, 35592408, 40041459, 53388612, 71184816, 80082918, 106777224, 160165836, 213554448, 320331672, 640663344]

約数ペア:

[(1, 640663344), (2, 320331672), (3, 213554448), (4, 160165836), (6, 106777224), (8, 80082918), (9, 71184816), (12, 53388612), (16, 40041459), (18, 35592408), (23, 27854928), (24, 26694306), (27, 23728272), (36, 17796204), (46, 13927464), (48, 13347153), (54, 11864136), (69, 9284976), (72, 8898102), (81, 7909424), (92, 6963732), (108, 5932068), (138, 4642488), (144, 4449051), (162, 3954712), (184, 3481866), (207, 3094992), (216, 2966034), (276, 2321244), (324, 1977356), (368, 1740933), (414, 1547496), (432, 1483017), (552, 1160622), (621, 1031664), (648, 988678), (828, 773748), (1104, 580311), (1242, 515832), (1296, 494339), (1656, 386874), (1863, 343888), (2484, 257916), (3312, 193437), (3726, 171944), (4968, 128958), (7452, 85972), (9936, 64479), (14904, 42986), (21493, 29808)]