205431240

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{244561}}^1$

素因数の和:244582

約数の個数: 64

約数和(自身を含む): 704338560

約数和(自身を除く): 498907320

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, 244561, 489122, 733683, 978244, 1222805, 1467366, 1711927, 1956488, 2445610, 2934732, 3423854, 3668415, 4891220, 5135781, 5869464, 6847708, 7336830, 8559635, 9782440, 10271562, 13695416, 14673660, 17119270, 20543124, 25678905, 29347320, 34238540, 41086248, 51357810, 68477080, 102715620, 205431240]

約数ペア:

[(1, 205431240), (2, 102715620), (3, 68477080), (4, 51357810), (5, 41086248), (6, 34238540), (7, 29347320), (8, 25678905), (10, 20543124), (12, 17119270), (14, 14673660), (15, 13695416), (20, 10271562), (21, 9782440), (24, 8559635), (28, 7336830), (30, 6847708), (35, 5869464), (40, 5135781), (42, 4891220), (56, 3668415), (60, 3423854), (70, 2934732), (84, 2445610), (105, 1956488), (120, 1711927), (140, 1467366), (168, 1222805), (210, 978244), (280, 733683), (420, 489122), (840, 244561)]