811480820

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{307}}^1\times {\mathrm{887}}^1$

素因数の和:1352

約数の個数: 48

約数和(自身を含む): 1723075200

約数和(自身を除く): 911594380

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 307, 596, 614, 745, 887, 1228, 1490, 1535, 1774, 2980, 3070, 3548, 4435, 6140, 8870, 17740, 45743, 91486, 132163, 182972, 228715, 264326, 272309, 457430, 528652, 544618, 660815, 914860, 1089236, 1321630, 1361545, 2643260, 2723090, 5446180, 40574041, 81148082, 162296164, 202870205, 405740410, 811480820]

約数ペア:

[(1, 811480820), (2, 405740410), (4, 202870205), (5, 162296164), (10, 81148082), (20, 40574041), (149, 5446180), (298, 2723090), (307, 2643260), (596, 1361545), (614, 1321630), (745, 1089236), (887, 914860), (1228, 660815), (1490, 544618), (1535, 528652), (1774, 457430), (2980, 272309), (3070, 264326), (3548, 228715), (4435, 182972), (6140, 132163), (8870, 91486), (17740, 45743)]