110887780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{271}}^1\times {\mathrm{499}}^1$

素因数の和:820

約数の個数: 48

約数和(自身を含む): 239904000

約数和(自身を除く): 129016220

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 271, 410, 499, 542, 820, 998, 1084, 1355, 1996, 2495, 2710, 4990, 5420, 9980, 11111, 20459, 22222, 40918, 44444, 55555, 81836, 102295, 111110, 135229, 204590, 222220, 270458, 409180, 540916, 676145, 1352290, 2704580, 5544389, 11088778, 22177556, 27721945, 55443890, 110887780]

約数ペア:

[(1, 110887780), (2, 55443890), (4, 27721945), (5, 22177556), (10, 11088778), (20, 5544389), (41, 2704580), (82, 1352290), (164, 676145), (205, 540916), (271, 409180), (410, 270458), (499, 222220), (542, 204590), (820, 135229), (998, 111110), (1084, 102295), (1355, 81836), (1996, 55555), (2495, 44444), (2710, 40918), (4990, 22222), (5420, 20459), (9980, 11111)]