279774649

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{283}}^1\times {\mathrm{347}}^1$

素因数の和:685

約数の個数: 32

約数和(自身を含む): 360539136

約数和(自身を除く): 80764487

約数列:

[1, 7, 11, 37, 77, 259, 283, 347, 407, 1981, 2429, 2849, 3113, 3817, 10471, 12839, 21791, 26719, 73297, 89873, 98201, 115181, 141229, 687407, 806267, 988603, 1080211, 3633437, 7561477, 25434059, 39967807, 279774649]

約数ペア:

[(1, 279774649), (7, 39967807), (11, 25434059), (37, 7561477), (77, 3633437), (259, 1080211), (283, 988603), (347, 806267), (407, 687407), (1981, 141229), (2429, 115181), (2849, 98201), (3113, 89873), (3817, 73297), (10471, 26719), (12839, 21791)]