80818360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{269}}^1$

素因数の和:353

約数の個数: 128

約数和(自身を含む): 221616000

約数和(自身を除く): 140797640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 37, 40, 56, 58, 70, 74, 116, 140, 145, 148, 185, 203, 232, 259, 269, 280, 290, 296, 370, 406, 518, 538, 580, 740, 812, 1015, 1036, 1073, 1076, 1160, 1295, 1345, 1480, 1624, 1883, 2030, 2072, 2146, 2152, 2590, 2690, 3766, 4060, 4292, 5180, 5365, 5380, 7511, 7532, 7801, 8120, 8584, 9415, 9953, 10360, 10730, 10760, 15022, 15064, 15602, 18830, 19906, 21460, 30044, 31204, 37555, 37660, 39005, 39812, 42920, 49765, 54607, 60088, 62408, 69671, 75110, 75320, 78010, 79624, 99530, 109214, 139342, 150220, 156020, 199060, 218428, 273035, 278684, 288637, 300440, 312040, 348355, 398120, 436856, 546070, 557368, 577274, 696710, 1092140, 1154548, 1393420, 1443185, 2020459, 2184280, 2309096, 2786840, 2886370, 4040918, 5772740, 8081836, 10102295, 11545480, 16163672, 20204590, 40409180, 80818360]

約数ペア:

[(1, 80818360), (2, 40409180), (4, 20204590), (5, 16163672), (7, 11545480), (8, 10102295), (10, 8081836), (14, 5772740), (20, 4040918), (28, 2886370), (29, 2786840), (35, 2309096), (37, 2184280), (40, 2020459), (56, 1443185), (58, 1393420), (70, 1154548), (74, 1092140), (116, 696710), (140, 577274), (145, 557368), (148, 546070), (185, 436856), (203, 398120), (232, 348355), (259, 312040), (269, 300440), (280, 288637), (290, 278684), (296, 273035), (370, 218428), (406, 199060), (518, 156020), (538, 150220), (580, 139342), (740, 109214), (812, 99530), (1015, 79624), (1036, 78010), (1073, 75320), (1076, 75110), (1160, 69671), (1295, 62408), (1345, 60088), (1480, 54607), (1624, 49765), (1883, 42920), (2030, 39812), (2072, 39005), (2146, 37660), (2152, 37555), (2590, 31204), (2690, 30044), (3766, 21460), (4060, 19906), (4292, 18830), (5180, 15602), (5365, 15064), (5380, 15022), (7511, 10760), (7532, 10730), (7801, 10360), (8120, 9953), (8584, 9415)]