81394320

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{48449}}^1$

素因数の和:48472

約数の個数: 80

約数和(自身を含む): 288374400

約数和(自身を除く): 206980080

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, 48449, 96898, 145347, 193796, 242245, 290694, 339143, 387592, 484490, 581388, 678286, 726735, 775184, 968980, 1017429, 1162776, 1356572, 1453470, 1695715, 1937960, 2034858, 2325552, 2713144, 2906940, 3391430, 3875920, 4069716, 5087145, 5426288, 5813880, 6782860, 8139432, 10174290, 11627760, 13565720, 16278864, 20348580, 27131440, 40697160, 81394320]

約数ペア:

[(1, 81394320), (2, 40697160), (3, 27131440), (4, 20348580), (5, 16278864), (6, 13565720), (7, 11627760), (8, 10174290), (10, 8139432), (12, 6782860), (14, 5813880), (15, 5426288), (16, 5087145), (20, 4069716), (21, 3875920), (24, 3391430), (28, 2906940), (30, 2713144), (35, 2325552), (40, 2034858), (42, 1937960), (48, 1695715), (56, 1453470), (60, 1356572), (70, 1162776), (80, 1017429), (84, 968980), (105, 775184), (112, 726735), (120, 678286), (140, 581388), (168, 484490), (210, 387592), (240, 339143), (280, 290694), (336, 242245), (420, 193796), (560, 145347), (840, 96898), (1680, 48449)]