1977906420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{38287}}^1$

素因数の和:38350

約数の個数: 144

約数和(自身を含む): 7024163328

約数和(自身を除く): 5046256908

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 41, 42, 45, 60, 63, 70, 82, 84, 90, 105, 123, 126, 140, 164, 180, 205, 210, 246, 252, 287, 315, 369, 410, 420, 492, 574, 615, 630, 738, 820, 861, 1148, 1230, 1260, 1435, 1476, 1722, 1845, 2460, 2583, 2870, 3444, 3690, 4305, 5166, 5740, 7380, 8610, 10332, 12915, 17220, 25830, 38287, 51660, 76574, 114861, 153148, 191435, 229722, 268009, 344583, 382870, 459444, 536018, 574305, 689166, 765740, 804027, 1072036, 1148610, 1340045, 1378332, 1569767, 1608054, 1722915, 2297220, 2412081, 2680090, 3139534, 3216108, 3445830, 4020135, 4709301, 4824162, 5360180, 6279068, 6891660, 7848835, 8040270, 9418602, 9648324, 10988369, 12060405, 14127903, 15697670, 16080540, 18837204, 21976738, 23546505, 24120810, 28255806, 31395340, 32965107, 43953476, 47093010, 48241620, 54941845, 56511612, 65930214, 70639515, 94186020, 98895321, 109883690, 131860428, 141279030, 164825535, 197790642, 219767380, 282558060, 329651070, 395581284, 494476605, 659302140, 988953210, 1977906420]

約数ペア:

[(1, 1977906420), (2, 988953210), (3, 659302140), (4, 494476605), (5, 395581284), (6, 329651070), (7, 282558060), (9, 219767380), (10, 197790642), (12, 164825535), (14, 141279030), (15, 131860428), (18, 109883690), (20, 98895321), (21, 94186020), (28, 70639515), (30, 65930214), (35, 56511612), (36, 54941845), (41, 48241620), (42, 47093010), (45, 43953476), (60, 32965107), (63, 31395340), (70, 28255806), (82, 24120810), (84, 23546505), (90, 21976738), (105, 18837204), (123, 16080540), (126, 15697670), (140, 14127903), (164, 12060405), (180, 10988369), (205, 9648324), (210, 9418602), (246, 8040270), (252, 7848835), (287, 6891660), (315, 6279068), (369, 5360180), (410, 4824162), (420, 4709301), (492, 4020135), (574, 3445830), (615, 3216108), (630, 3139534), (738, 2680090), (820, 2412081), (861, 2297220), (1148, 1722915), (1230, 1608054), (1260, 1569767), (1435, 1378332), (1476, 1340045), (1722, 1148610), (1845, 1072036), (2460, 804027), (2583, 765740), (2870, 689166), (3444, 574305), (3690, 536018), (4305, 459444), (5166, 382870), (5740, 344583), (7380, 268009), (8610, 229722), (10332, 191435), (12915, 153148), (17220, 114861), (25830, 76574), (38287, 51660)]