128863852

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:255

約数の個数: 72

約数和(自身を含む): 262348800

約数和(自身を除く): 133484948

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 79, 127, 158, 169, 247, 254, 316, 338, 494, 508, 676, 988, 1027, 1501, 1651, 2054, 2413, 3002, 3211, 3302, 4108, 4826, 6004, 6422, 6604, 9652, 10033, 12844, 13351, 19513, 20066, 21463, 26702, 31369, 39026, 40132, 42926, 53404, 62738, 78052, 85852, 125476, 130429, 190627, 253669, 260858, 381254, 407797, 507338, 521716, 762508, 815594, 1014676, 1631188, 1695577, 2478151, 3391154, 4956302, 6782308, 9912604, 32215963, 64431926, 128863852]

約数ペア:

[(1, 128863852), (2, 64431926), (4, 32215963), (13, 9912604), (19, 6782308), (26, 4956302), (38, 3391154), (52, 2478151), (76, 1695577), (79, 1631188), (127, 1014676), (158, 815594), (169, 762508), (247, 521716), (254, 507338), (316, 407797), (338, 381254), (494, 260858), (508, 253669), (676, 190627), (988, 130429), (1027, 125476), (1501, 85852), (1651, 78052), (2054, 62738), (2413, 53404), (3002, 42926), (3211, 40132), (3302, 39026), (4108, 31369), (4826, 26702), (6004, 21463), (6422, 20066), (6604, 19513), (9652, 13351), (10033, 12844)]