20812010

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{2207}}^1$

素因数の和:2278

約数の個数: 32

約数和(自身を含む): 40061952

約数和(自身を除く): 19249942

約数列:

[1, 2, 5, 10, 23, 41, 46, 82, 115, 205, 230, 410, 943, 1886, 2207, 4414, 4715, 9430, 11035, 22070, 50761, 90487, 101522, 180974, 253805, 452435, 507610, 904870, 2081201, 4162402, 10406005, 20812010]

約数ペア:

[(1, 20812010), (2, 10406005), (5, 4162402), (10, 2081201), (23, 904870), (41, 507610), (46, 452435), (82, 253805), (115, 180974), (205, 101522), (230, 90487), (410, 50761), (943, 22070), (1886, 11035), (2207, 9430), (4414, 4715)]