2078680

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{331}}^1$

素因数の和:499

約数の個数: 32

約数和(自身を含む): 4721040

約数和(自身を除く): 2642360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 331, 628, 662, 785, 1256, 1324, 1570, 1655, 2648, 3140, 3310, 6280, 6620, 13240, 51967, 103934, 207868, 259835, 415736, 519670, 1039340, 2078680]

約数ペア:

[(1, 2078680), (2, 1039340), (4, 519670), (5, 415736), (8, 259835), (10, 207868), (20, 103934), (40, 51967), (157, 13240), (314, 6620), (331, 6280), (628, 3310), (662, 3140), (785, 2648), (1256, 1655), (1324, 1570)]