81804870

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{43283}}^1$

素因数の和:43306

約数の個数: 64

約数和(自身を含む): 249315840

約数和(自身を除く): 167510970

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 43283, 86566, 129849, 216415, 259698, 302981, 389547, 432830, 605962, 649245, 779094, 908943, 1168641, 1298490, 1514905, 1817886, 1947735, 2337282, 2726829, 3029810, 3895470, 4544715, 5453658, 5843205, 8180487, 9089430, 11686410, 13634145, 16360974, 27268290, 40902435, 81804870]

約数ペア:

[(1, 81804870), (2, 40902435), (3, 27268290), (5, 16360974), (6, 13634145), (7, 11686410), (9, 9089430), (10, 8180487), (14, 5843205), (15, 5453658), (18, 4544715), (21, 3895470), (27, 3029810), (30, 2726829), (35, 2337282), (42, 1947735), (45, 1817886), (54, 1514905), (63, 1298490), (70, 1168641), (90, 908943), (105, 779094), (126, 649245), (135, 605962), (189, 432830), (210, 389547), (270, 302981), (315, 259698), (378, 216415), (630, 129849), (945, 86566), (1890, 43283)]