81952080

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{48781}}^1$

素因数の和:48804

約数の個数: 80

約数和(自身を含む): 290350464

約数和(自身を除く): 208398384

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 48781, 97562, 146343, 195124, 243905, 292686, 341467, 390248, 487810, 585372, 682934, 731715, 780496, 975620, 1024401, 1170744, 1365868, 1463430, 1707335, 1951240, 2048802, 2341488, 2731736, 2926860, 3414670, 3902480, 4097604, 5122005, 5463472, 5853720, 6829340, 8195208, 10244010, 11707440, 13658680, 16390416, 20488020, 27317360, 40976040, 81952080]

約数ペア:

[(1, 81952080), (2, 40976040), (3, 27317360), (4, 20488020), (5, 16390416), (6, 13658680), (7, 11707440), (8, 10244010), (10, 8195208), (12, 6829340), (14, 5853720), (15, 5463472), (16, 5122005), (20, 4097604), (21, 3902480), (24, 3414670), (28, 2926860), (30, 2731736), (35, 2341488), (40, 2048802), (42, 1951240), (48, 1707335), (56, 1463430), (60, 1365868), (70, 1170744), (80, 1024401), (84, 975620), (105, 780496), (112, 731715), (120, 682934), (140, 585372), (168, 487810), (210, 390248), (240, 341467), (280, 292686), (336, 243905), (420, 195124), (560, 146343), (840, 97562), (1680, 48781)]