68786878

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1\times {\mathrm{181}}^1$

素因数の和:412

約数の個数: 32

約数和(自身を含む): 111515040

約数和(自身を除く): 42728162

約数列:

[1, 2, 19, 38, 73, 137, 146, 181, 274, 362, 1387, 2603, 2774, 3439, 5206, 6878, 10001, 13213, 20002, 24797, 26426, 49594, 190019, 251047, 380038, 471143, 502094, 942286, 1810181, 3620362, 34393439, 68786878]

約数ペア:

[(1, 68786878), (2, 34393439), (19, 3620362), (38, 1810181), (73, 942286), (137, 502094), (146, 471143), (181, 380038), (274, 251047), (362, 190019), (1387, 49594), (2603, 26426), (2774, 24797), (3439, 20002), (5206, 13213), (6878, 10001)]