81750564

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{353}}^1\times {\mathrm{919}}^1$

素因数の和:1289

約数の個数: 72

約数和(自身を含む): 237095040

約数和(自身を除く): 155344476

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 353, 706, 919, 1059, 1412, 1838, 2118, 2471, 2757, 3177, 3676, 4236, 4942, 5514, 6354, 6433, 7413, 8271, 9884, 11028, 12708, 12866, 14826, 16542, 19299, 22239, 25732, 29652, 33084, 38598, 44478, 57897, 77196, 88956, 115794, 231588, 324407, 648814, 973221, 1297628, 1946442, 2270849, 2919663, 3892884, 4541698, 5839326, 6812547, 9083396, 11678652, 13625094, 20437641, 27250188, 40875282, 81750564]

約数ペア:

[(1, 81750564), (2, 40875282), (3, 27250188), (4, 20437641), (6, 13625094), (7, 11678652), (9, 9083396), (12, 6812547), (14, 5839326), (18, 4541698), (21, 3892884), (28, 2919663), (36, 2270849), (42, 1946442), (63, 1297628), (84, 973221), (126, 648814), (252, 324407), (353, 231588), (706, 115794), (919, 88956), (1059, 77196), (1412, 57897), (1838, 44478), (2118, 38598), (2471, 33084), (2757, 29652), (3177, 25732), (3676, 22239), (4236, 19299), (4942, 16542), (5514, 14826), (6354, 12866), (6433, 12708), (7413, 11028), (8271, 9884)]