209850004

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{727}}^1$

素因数の和:825

約数の個数: 72

約数和(自身を含む): 462553728

約数和(自身を除く): 252703724

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 61, 91, 122, 169, 182, 244, 338, 364, 427, 676, 727, 793, 854, 1183, 1454, 1586, 1708, 2366, 2908, 3172, 4732, 5089, 5551, 9451, 10178, 10309, 11102, 18902, 20356, 20618, 22204, 37804, 41236, 44347, 66157, 72163, 88694, 122863, 132314, 144326, 177388, 245726, 264628, 288652, 310429, 491452, 576511, 620858, 860041, 1153022, 1241716, 1720082, 2306044, 3440164, 4035577, 7494643, 8071154, 14989286, 16142308, 29978572, 52462501, 104925002, 209850004]

約数ペア:

[(1, 209850004), (2, 104925002), (4, 52462501), (7, 29978572), (13, 16142308), (14, 14989286), (26, 8071154), (28, 7494643), (52, 4035577), (61, 3440164), (91, 2306044), (122, 1720082), (169, 1241716), (182, 1153022), (244, 860041), (338, 620858), (364, 576511), (427, 491452), (676, 310429), (727, 288652), (793, 264628), (854, 245726), (1183, 177388), (1454, 144326), (1586, 132314), (1708, 122863), (2366, 88694), (2908, 72163), (3172, 66157), (4732, 44347), (5089, 41236), (5551, 37804), (9451, 22204), (10178, 20618), (10309, 20356), (11102, 18902)]