257773515

素因数分解:

$3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{197}}^1\times {\mathrm{1051}}^1$

素因数の和:1339

約数の個数: 32

約数和(自身を含む): 419924736

約数和(自身を除く): 162151221

約数列:

[1, 3, 5, 15, 83, 197, 249, 415, 591, 985, 1051, 1245, 2955, 3153, 5255, 15765, 16351, 49053, 81755, 87233, 207047, 245265, 261699, 436165, 621141, 1035235, 1308495, 3105705, 17184901, 51554703, 85924505, 257773515]

約数ペア:

[(1, 257773515), (3, 85924505), (5, 51554703), (15, 17184901), (83, 3105705), (197, 1308495), (249, 1035235), (415, 621141), (591, 436165), (985, 261699), (1051, 245265), (1245, 207047), (2955, 87233), (3153, 81755), (5255, 49053), (15765, 16351)]