81323760

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{48407}}^1$

素因数の和:48430

約数の個数: 80

約数和(自身を含む): 288124416

約数和(自身を除く): 206800656

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, 48407, 96814, 145221, 193628, 242035, 290442, 338849, 387256, 484070, 580884, 677698, 726105, 774512, 968140, 1016547, 1161768, 1355396, 1452210, 1694245, 1936280, 2033094, 2323536, 2710792, 2904420, 3388490, 3872560, 4066188, 5082735, 5421584, 5808840, 6776980, 8132376, 10165470, 11617680, 13553960, 16264752, 20330940, 27107920, 40661880, 81323760]

約数ペア:

[(1, 81323760), (2, 40661880), (3, 27107920), (4, 20330940), (5, 16264752), (6, 13553960), (7, 11617680), (8, 10165470), (10, 8132376), (12, 6776980), (14, 5808840), (15, 5421584), (16, 5082735), (20, 4066188), (21, 3872560), (24, 3388490), (28, 2904420), (30, 2710792), (35, 2323536), (40, 2033094), (42, 1936280), (48, 1694245), (56, 1452210), (60, 1355396), (70, 1161768), (80, 1016547), (84, 968140), (105, 774512), (112, 726105), (120, 677698), (140, 580884), (168, 484070), (210, 387256), (240, 338849), (280, 290442), (336, 242035), (420, 193628), (560, 145221), (840, 96814), (1680, 48407)]