278884318

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{1427}}^1$

素因数の和:1624

約数の個数: 32

約数和(自身を含む): 455817600

約数和(自身を除く): 176933282

約数列:

[1, 2, 19, 37, 38, 74, 139, 278, 703, 1406, 1427, 2641, 2854, 5143, 5282, 10286, 27113, 52799, 54226, 97717, 105598, 195434, 198353, 396706, 1003181, 2006362, 3768707, 7339061, 7537414, 14678122, 139442159, 278884318]

約数ペア:

[(1, 278884318), (2, 139442159), (19, 14678122), (37, 7537414), (38, 7339061), (74, 3768707), (139, 2006362), (278, 1003181), (703, 396706), (1406, 198353), (1427, 195434), (2641, 105598), (2854, 97717), (5143, 54226), (5282, 52799), (10286, 27113)]