28178046

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^2\times {\mathrm{59}}^1\times {\mathrm{157}}^1$

素因数の和:250

約数の個数: 72

約数和(自身を含む): 67658760

約数和(自身を除く): 39480714

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 59, 78, 117, 118, 157, 169, 177, 234, 314, 338, 354, 471, 507, 531, 767, 942, 1014, 1062, 1413, 1521, 1534, 2041, 2301, 2826, 3042, 4082, 4602, 6123, 6903, 9263, 9971, 12246, 13806, 18369, 18526, 19942, 26533, 27789, 29913, 36738, 53066, 55578, 59826, 79599, 83367, 89739, 120419, 159198, 166734, 179478, 238797, 240838, 361257, 477594, 722514, 1083771, 1565447, 2167542, 3130894, 4696341, 9392682, 14089023, 28178046]

約数ペア:

[(1, 28178046), (2, 14089023), (3, 9392682), (6, 4696341), (9, 3130894), (13, 2167542), (18, 1565447), (26, 1083771), (39, 722514), (59, 477594), (78, 361257), (117, 240838), (118, 238797), (157, 179478), (169, 166734), (177, 159198), (234, 120419), (314, 89739), (338, 83367), (354, 79599), (471, 59826), (507, 55578), (531, 53066), (767, 36738), (942, 29913), (1014, 27789), (1062, 26533), (1413, 19942), (1521, 18526), (1534, 18369), (2041, 13806), (2301, 12246), (2826, 9971), (3042, 9263), (4082, 6903), (4602, 6123)]