28205655980

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{5669}}^1$

素因数の和:5871

約数の個数: 96

約数和(自身を含む): 62183116800

約数和(自身を除く): 33977460820

約数列:

[1, 2, 4, 5, 10, 20, 47, 67, 79, 94, 134, 158, 188, 235, 268, 316, 335, 395, 470, 670, 790, 940, 1340, 1580, 3149, 3713, 5293, 5669, 6298, 7426, 10586, 11338, 12596, 14852, 15745, 18565, 21172, 22676, 26465, 28345, 31490, 37130, 52930, 56690, 62980, 74260, 105860, 113380, 248771, 266443, 379823, 447851, 497542, 532886, 759646, 895702, 995084, 1065772, 1243855, 1332215, 1519292, 1791404, 1899115, 2239255, 2487710, 2664430, 3798230, 4478510, 4975420, 5328860, 7596460, 8957020, 17851681, 21048997, 30006017, 35703362, 42097994, 60012034, 71406724, 84195988, 89258405, 105244985, 120024068, 150030085, 178516810, 210489970, 300060170, 357033620, 420979940, 600120340, 1410282799, 2820565598, 5641131196, 7051413995, 14102827990, 28205655980]

約数ペア:

[(1, 28205655980), (2, 14102827990), (4, 7051413995), (5, 5641131196), (10, 2820565598), (20, 1410282799), (47, 600120340), (67, 420979940), (79, 357033620), (94, 300060170), (134, 210489970), (158, 178516810), (188, 150030085), (235, 120024068), (268, 105244985), (316, 89258405), (335, 84195988), (395, 71406724), (470, 60012034), (670, 42097994), (790, 35703362), (940, 30006017), (1340, 21048997), (1580, 17851681), (3149, 8957020), (3713, 7596460), (5293, 5328860), (5669, 4975420), (6298, 4478510), (7426, 3798230), (10586, 2664430), (11338, 2487710), (12596, 2239255), (14852, 1899115), (15745, 1791404), (18565, 1519292), (21172, 1332215), (22676, 1243855), (26465, 1065772), (28345, 995084), (31490, 895702), (37130, 759646), (52930, 532886), (56690, 497542), (62980, 447851), (74260, 379823), (105860, 266443), (113380, 248771)]