2016990680

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{613}}^1\times {\mathrm{1913}}^1$

素因数の和:2580

約数の個数: 64

約数和(自身を含む): 4653776160

約数和(自身を除く): 2636785480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 613, 860, 1226, 1720, 1913, 2452, 3065, 3826, 4904, 6130, 7652, 9565, 12260, 15304, 19130, 24520, 26359, 38260, 52718, 76520, 82259, 105436, 131795, 164518, 210872, 263590, 329036, 411295, 527180, 658072, 822590, 1054360, 1172669, 1645180, 2345338, 3290360, 4690676, 5863345, 9381352, 11726690, 23453380, 46906760, 50424767, 100849534, 201699068, 252123835, 403398136, 504247670, 1008495340, 2016990680]

約数ペア:

[(1, 2016990680), (2, 1008495340), (4, 504247670), (5, 403398136), (8, 252123835), (10, 201699068), (20, 100849534), (40, 50424767), (43, 46906760), (86, 23453380), (172, 11726690), (215, 9381352), (344, 5863345), (430, 4690676), (613, 3290360), (860, 2345338), (1226, 1645180), (1720, 1172669), (1913, 1054360), (2452, 822590), (3065, 658072), (3826, 527180), (4904, 411295), (6130, 329036), (7652, 263590), (9565, 210872), (12260, 164518), (15304, 131795), (19130, 105436), (24520, 82259), (26359, 76520), (38260, 52718)]