278523908

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{239}}^1\times {\mathrm{307}}^1$

素因数の和:636

約数の個数: 48

約数和(自身を含む): 536067840

約数和(自身を除く): 257543932

約数列:

[1, 2, 4, 13, 26, 52, 73, 146, 239, 292, 307, 478, 614, 949, 956, 1228, 1898, 3107, 3796, 3991, 6214, 7982, 12428, 15964, 17447, 22411, 34894, 44822, 69788, 73373, 89644, 146746, 226811, 291343, 293492, 453622, 582686, 907244, 953849, 1165372, 1907698, 3815396, 5356229, 10712458, 21424916, 69630977, 139261954, 278523908]

約数ペア:

[(1, 278523908), (2, 139261954), (4, 69630977), (13, 21424916), (26, 10712458), (52, 5356229), (73, 3815396), (146, 1907698), (239, 1165372), (292, 953849), (307, 907244), (478, 582686), (614, 453622), (949, 293492), (956, 291343), (1228, 226811), (1898, 146746), (3107, 89644), (3796, 73373), (3991, 69788), (6214, 44822), (7982, 34894), (12428, 22411), (15964, 17447)]