78997800

素因数分解:

$2^3\times 3^1\times 5^2\times 7^2\times {\mathrm{2687}}^1$

素因数の和:2720

約数の個数: 144

約数和(自身を含む): 284981760

約数和(自身を除く): 205983960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 25, 28, 30, 35, 40, 42, 49, 50, 56, 60, 70, 75, 84, 98, 100, 105, 120, 140, 147, 150, 168, 175, 196, 200, 210, 245, 280, 294, 300, 350, 392, 420, 490, 525, 588, 600, 700, 735, 840, 980, 1050, 1176, 1225, 1400, 1470, 1960, 2100, 2450, 2687, 2940, 3675, 4200, 4900, 5374, 5880, 7350, 8061, 9800, 10748, 13435, 14700, 16122, 18809, 21496, 26870, 29400, 32244, 37618, 40305, 53740, 56427, 64488, 67175, 75236, 80610, 94045, 107480, 112854, 131663, 134350, 150472, 161220, 188090, 201525, 225708, 263326, 268700, 282135, 322440, 376180, 394989, 403050, 451416, 470225, 526652, 537400, 564270, 658315, 752360, 789978, 806100, 940450, 1053304, 1128540, 1316630, 1410675, 1579956, 1612200, 1880900, 1974945, 2257080, 2633260, 2821350, 3159912, 3291575, 3761800, 3949890, 5266520, 5642700, 6583150, 7899780, 9874725, 11285400, 13166300, 15799560, 19749450, 26332600, 39498900, 78997800]

約数ペア:

[(1, 78997800), (2, 39498900), (3, 26332600), (4, 19749450), (5, 15799560), (6, 13166300), (7, 11285400), (8, 9874725), (10, 7899780), (12, 6583150), (14, 5642700), (15, 5266520), (20, 3949890), (21, 3761800), (24, 3291575), (25, 3159912), (28, 2821350), (30, 2633260), (35, 2257080), (40, 1974945), (42, 1880900), (49, 1612200), (50, 1579956), (56, 1410675), (60, 1316630), (70, 1128540), (75, 1053304), (84, 940450), (98, 806100), (100, 789978), (105, 752360), (120, 658315), (140, 564270), (147, 537400), (150, 526652), (168, 470225), (175, 451416), (196, 403050), (200, 394989), (210, 376180), (245, 322440), (280, 282135), (294, 268700), (300, 263326), (350, 225708), (392, 201525), (420, 188090), (490, 161220), (525, 150472), (588, 134350), (600, 131663), (700, 112854), (735, 107480), (840, 94045), (980, 80610), (1050, 75236), (1176, 67175), (1225, 64488), (1400, 56427), (1470, 53740), (1960, 40305), (2100, 37618), (2450, 32244), (2687, 29400), (2940, 26870), (3675, 21496), (4200, 18809), (4900, 16122), (5374, 14700), (5880, 13435), (7350, 10748), (8061, 9800)]