20789029090

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{26561}}^1$

素因数の和:26715

約数の個数: 64

約数和(自身を含む): 40483037952

約数和(自身を除く): 19694008862

約数列:

[1, 2, 5, 10, 23, 41, 46, 82, 83, 115, 166, 205, 230, 410, 415, 830, 943, 1886, 1909, 3403, 3818, 4715, 6806, 9430, 9545, 17015, 19090, 26561, 34030, 53122, 78269, 132805, 156538, 265610, 391345, 610903, 782690, 1089001, 1221806, 2178002, 2204563, 3054515, 4409126, 5445005, 6109030, 10890010, 11022815, 22045630, 25047023, 50094046, 50704949, 90387083, 101409898, 125235115, 180774166, 250470230, 253524745, 451935415, 507049490, 903870830, 2078902909, 4157805818, 10394514545, 20789029090]

約数ペア:

[(1, 20789029090), (2, 10394514545), (5, 4157805818), (10, 2078902909), (23, 903870830), (41, 507049490), (46, 451935415), (82, 253524745), (83, 250470230), (115, 180774166), (166, 125235115), (205, 101409898), (230, 90387083), (410, 50704949), (415, 50094046), (830, 25047023), (943, 22045630), (1886, 11022815), (1909, 10890010), (3403, 6109030), (3818, 5445005), (4715, 4409126), (6806, 3054515), (9430, 2204563), (9545, 2178002), (17015, 1221806), (19090, 1089001), (26561, 782690), (34030, 610903), (53122, 391345), (78269, 265610), (132805, 156538)]