64386840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{76651}}^1$

素因数の和:76672

約数の個数: 64

約数和(自身を含む): 220757760

約数和(自身を除く): 156370920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 76651, 153302, 229953, 306604, 383255, 459906, 536557, 613208, 766510, 919812, 1073114, 1149765, 1533020, 1609671, 1839624, 2146228, 2299530, 2682785, 3066040, 3219342, 4292456, 4599060, 5365570, 6438684, 8048355, 9198120, 10731140, 12877368, 16096710, 21462280, 32193420, 64386840]

約数ペア:

[(1, 64386840), (2, 32193420), (3, 21462280), (4, 16096710), (5, 12877368), (6, 10731140), (7, 9198120), (8, 8048355), (10, 6438684), (12, 5365570), (14, 4599060), (15, 4292456), (20, 3219342), (21, 3066040), (24, 2682785), (28, 2299530), (30, 2146228), (35, 1839624), (40, 1609671), (42, 1533020), (56, 1149765), (60, 1073114), (70, 919812), (84, 766510), (105, 613208), (120, 536557), (140, 459906), (168, 383255), (210, 306604), (280, 229953), (420, 153302), (840, 76651)]