68913680

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{78311}}^1$

素因数の和:78335

約数の個数: 40

約数和(自身を含む): 174792384

約数和(自身を除く): 105878704

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 78311, 156622, 313244, 391555, 626488, 783110, 861421, 1252976, 1566220, 1722842, 3132440, 3445684, 4307105, 6264880, 6891368, 8614210, 13782736, 17228420, 34456840, 68913680]

約数ペア:

[(1, 68913680), (2, 34456840), (4, 17228420), (5, 13782736), (8, 8614210), (10, 6891368), (11, 6264880), (16, 4307105), (20, 3445684), (22, 3132440), (40, 1722842), (44, 1566220), (55, 1252976), (80, 861421), (88, 783110), (110, 626488), (176, 391555), (220, 313244), (440, 156622), (880, 78311)]