20864976

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{919}}^1$

素因数の和:984

約数の個数: 80

約数和(自身を含む): 60234240

約数和(自身を除く): 39369264

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 43, 44, 48, 66, 86, 88, 129, 132, 172, 176, 258, 264, 344, 473, 516, 528, 688, 919, 946, 1032, 1419, 1838, 1892, 2064, 2757, 2838, 3676, 3784, 5514, 5676, 7352, 7568, 10109, 11028, 11352, 14704, 20218, 22056, 22704, 30327, 39517, 40436, 44112, 60654, 79034, 80872, 118551, 121308, 158068, 161744, 237102, 242616, 316136, 434687, 474204, 485232, 632272, 869374, 948408, 1304061, 1738748, 1896816, 2608122, 3477496, 5216244, 6954992, 10432488, 20864976]

約数ペア:

[(1, 20864976), (2, 10432488), (3, 6954992), (4, 5216244), (6, 3477496), (8, 2608122), (11, 1896816), (12, 1738748), (16, 1304061), (22, 948408), (24, 869374), (33, 632272), (43, 485232), (44, 474204), (48, 434687), (66, 316136), (86, 242616), (88, 237102), (129, 161744), (132, 158068), (172, 121308), (176, 118551), (258, 80872), (264, 79034), (344, 60654), (473, 44112), (516, 40436), (528, 39517), (688, 30327), (919, 22704), (946, 22056), (1032, 20218), (1419, 14704), (1838, 11352), (1892, 11028), (2064, 10109), (2757, 7568), (2838, 7352), (3676, 5676), (3784, 5514)]