81071480

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{311}}^1$

素因数の和:362

約数の個数: 128

約数和(自身を含む): 224640000

約数和(自身を除く): 143568520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 49, 56, 70, 76, 95, 98, 133, 140, 152, 190, 196, 245, 266, 280, 311, 343, 380, 392, 490, 532, 622, 665, 686, 760, 931, 980, 1064, 1244, 1330, 1372, 1555, 1715, 1862, 1960, 2177, 2488, 2660, 2744, 3110, 3430, 3724, 4354, 4655, 5320, 5909, 6220, 6517, 6860, 7448, 8708, 9310, 10885, 11818, 12440, 13034, 13720, 15239, 17416, 18620, 21770, 23636, 26068, 29545, 30478, 32585, 37240, 41363, 43540, 47272, 52136, 59090, 60956, 65170, 76195, 82726, 87080, 106673, 118180, 121912, 130340, 152390, 165452, 206815, 213346, 236360, 260680, 289541, 304780, 330904, 413630, 426692, 533365, 579082, 609560, 827260, 853384, 1066730, 1158164, 1447705, 1654520, 2026787, 2133460, 2316328, 2895410, 4053574, 4266920, 5790820, 8107148, 10133935, 11581640, 16214296, 20267870, 40535740, 81071480]

約数ペア:

[(1, 81071480), (2, 40535740), (4, 20267870), (5, 16214296), (7, 11581640), (8, 10133935), (10, 8107148), (14, 5790820), (19, 4266920), (20, 4053574), (28, 2895410), (35, 2316328), (38, 2133460), (40, 2026787), (49, 1654520), (56, 1447705), (70, 1158164), (76, 1066730), (95, 853384), (98, 827260), (133, 609560), (140, 579082), (152, 533365), (190, 426692), (196, 413630), (245, 330904), (266, 304780), (280, 289541), (311, 260680), (343, 236360), (380, 213346), (392, 206815), (490, 165452), (532, 152390), (622, 130340), (665, 121912), (686, 118180), (760, 106673), (931, 87080), (980, 82726), (1064, 76195), (1244, 65170), (1330, 60956), (1372, 59090), (1555, 52136), (1715, 47272), (1862, 43540), (1960, 41363), (2177, 37240), (2488, 32585), (2660, 30478), (2744, 29545), (3110, 26068), (3430, 23636), (3724, 21770), (4354, 18620), (4655, 17416), (5320, 15239), (5909, 13720), (6220, 13034), (6517, 12440), (6860, 11818), (7448, 10885), (8708, 9310)]