218610280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{271}}^1$

素因数の和:399

約数の個数: 128

約数和(自身を含む): 585953280

約数和(自身を除く): 367343000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 67, 70, 86, 134, 140, 172, 215, 268, 271, 280, 301, 335, 344, 430, 469, 536, 542, 602, 670, 860, 938, 1084, 1204, 1340, 1355, 1505, 1720, 1876, 1897, 2168, 2345, 2408, 2680, 2710, 2881, 3010, 3752, 3794, 4690, 5420, 5762, 6020, 7588, 9380, 9485, 10840, 11524, 11653, 12040, 14405, 15176, 18157, 18760, 18970, 20167, 23048, 23306, 28810, 36314, 37940, 40334, 46612, 57620, 58265, 72628, 75880, 80668, 81571, 90785, 93224, 100835, 115240, 116530, 127099, 145256, 161336, 163142, 181570, 201670, 233060, 254198, 326284, 363140, 403340, 407855, 466120, 508396, 635495, 652568, 726280, 780751, 806680, 815710, 1016792, 1270990, 1561502, 1631420, 2541980, 3123004, 3262840, 3903755, 5083960, 5465257, 6246008, 7807510, 10930514, 15615020, 21861028, 27326285, 31230040, 43722056, 54652570, 109305140, 218610280]

約数ペア:

[(1, 218610280), (2, 109305140), (4, 54652570), (5, 43722056), (7, 31230040), (8, 27326285), (10, 21861028), (14, 15615020), (20, 10930514), (28, 7807510), (35, 6246008), (40, 5465257), (43, 5083960), (56, 3903755), (67, 3262840), (70, 3123004), (86, 2541980), (134, 1631420), (140, 1561502), (172, 1270990), (215, 1016792), (268, 815710), (271, 806680), (280, 780751), (301, 726280), (335, 652568), (344, 635495), (430, 508396), (469, 466120), (536, 407855), (542, 403340), (602, 363140), (670, 326284), (860, 254198), (938, 233060), (1084, 201670), (1204, 181570), (1340, 163142), (1355, 161336), (1505, 145256), (1720, 127099), (1876, 116530), (1897, 115240), (2168, 100835), (2345, 93224), (2408, 90785), (2680, 81571), (2710, 80668), (2881, 75880), (3010, 72628), (3752, 58265), (3794, 57620), (4690, 46612), (5420, 40334), (5762, 37940), (6020, 36314), (7588, 28810), (9380, 23306), (9485, 23048), (10840, 20167), (11524, 18970), (11653, 18760), (12040, 18157), (14405, 15176)]