264739120

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{367}}^1$

素因数の和:578

約数の個数: 80

約数和(自身を含む): 630816768

約数和(自身を除く): 366077648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 127, 142, 254, 284, 355, 367, 508, 568, 635, 710, 734, 1016, 1136, 1270, 1420, 1468, 1835, 2032, 2540, 2840, 2936, 3670, 5080, 5680, 5872, 7340, 9017, 10160, 14680, 18034, 26057, 29360, 36068, 45085, 46609, 52114, 72136, 90170, 93218, 104228, 130285, 144272, 180340, 186436, 208456, 233045, 260570, 360680, 372872, 416912, 466090, 521140, 721360, 745744, 932180, 1042280, 1864360, 2084560, 3309239, 3728720, 6618478, 13236956, 16546195, 26473912, 33092390, 52947824, 66184780, 132369560, 264739120]

約数ペア:

[(1, 264739120), (2, 132369560), (4, 66184780), (5, 52947824), (8, 33092390), (10, 26473912), (16, 16546195), (20, 13236956), (40, 6618478), (71, 3728720), (80, 3309239), (127, 2084560), (142, 1864360), (254, 1042280), (284, 932180), (355, 745744), (367, 721360), (508, 521140), (568, 466090), (635, 416912), (710, 372872), (734, 360680), (1016, 260570), (1136, 233045), (1270, 208456), (1420, 186436), (1468, 180340), (1835, 144272), (2032, 130285), (2540, 104228), (2840, 93218), (2936, 90170), (3670, 72136), (5080, 52114), (5680, 46609), (5872, 45085), (7340, 36068), (9017, 29360), (10160, 26057), (14680, 18034)]