257913420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{4298557}}^1$

素因数の和:4298569

約数の個数: 24

約数和(自身を含む): 722157744

約数和(自身を除く): 464244324

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 4298557, 8597114, 12895671, 17194228, 21492785, 25791342, 42985570, 51582684, 64478355, 85971140, 128956710, 257913420]

約数ペア:

[(1, 257913420), (2, 128956710), (3, 85971140), (4, 64478355), (5, 51582684), (6, 42985570), (10, 25791342), (12, 21492785), (15, 17194228), (20, 12895671), (30, 8597114), (60, 4298557)]