1639788660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{211859}}^1$

素因数の和:211917

約数の個数: 72

約数和(自身を含む): 5089724640

約数和(自身を除く): 3449935980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2580, 3870, 7740, 211859, 423718, 635577, 847436, 1059295, 1271154, 1906731, 2118590, 2542308, 3177885, 3813462, 4237180, 6355770, 7626924, 9109937, 9533655, 12711540, 18219874, 19067310, 27329811, 36439748, 38134620, 45549685, 54659622, 81989433, 91099370, 109319244, 136649055, 163978866, 182198740, 273298110, 327957732, 409947165, 546596220, 819894330, 1639788660]

約数ペア:

[(1, 1639788660), (2, 819894330), (3, 546596220), (4, 409947165), (5, 327957732), (6, 273298110), (9, 182198740), (10, 163978866), (12, 136649055), (15, 109319244), (18, 91099370), (20, 81989433), (30, 54659622), (36, 45549685), (43, 38134620), (45, 36439748), (60, 27329811), (86, 19067310), (90, 18219874), (129, 12711540), (172, 9533655), (180, 9109937), (215, 7626924), (258, 6355770), (387, 4237180), (430, 3813462), (516, 3177885), (645, 2542308), (774, 2118590), (860, 1906731), (1290, 1271154), (1548, 1059295), (1935, 847436), (2580, 635577), (3870, 423718), (7740, 211859)]