2257040

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{317}}^1$

素因数の和:419

約数の個数: 40

約数和(自身を含む): 5323320

約数和(自身を除く): 3066280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 317, 356, 445, 634, 712, 890, 1268, 1424, 1585, 1780, 2536, 3170, 3560, 5072, 6340, 7120, 12680, 25360, 28213, 56426, 112852, 141065, 225704, 282130, 451408, 564260, 1128520, 2257040]

約数ペア:

[(1, 2257040), (2, 1128520), (4, 564260), (5, 451408), (8, 282130), (10, 225704), (16, 141065), (20, 112852), (40, 56426), (80, 28213), (89, 25360), (178, 12680), (317, 7120), (356, 6340), (445, 5072), (634, 3560), (712, 3170), (890, 2536), (1268, 1780), (1424, 1585)]