2639800

素因数分解:

$2^3\times 5^2\times {\mathrm{67}}^1\times {\mathrm{197}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 6260760

約数和(自身を除く): 3620960

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 67, 100, 134, 197, 200, 268, 335, 394, 536, 670, 788, 985, 1340, 1576, 1675, 1970, 2680, 3350, 3940, 4925, 6700, 7880, 9850, 13199, 13400, 19700, 26398, 39400, 52796, 65995, 105592, 131990, 263980, 329975, 527960, 659950, 1319900, 2639800]

約数ペア:

[(1, 2639800), (2, 1319900), (4, 659950), (5, 527960), (8, 329975), (10, 263980), (20, 131990), (25, 105592), (40, 65995), (50, 52796), (67, 39400), (100, 26398), (134, 19700), (197, 13400), (200, 13199), (268, 9850), (335, 7880), (394, 6700), (536, 4925), (670, 3940), (788, 3350), (985, 2680), (1340, 1970), (1576, 1675)]