2608280

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{331}}^1$

素因数の和:539

約数の個数: 32

約数和(自身を含む): 5916240

約数和(自身を除く): 3307960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 331, 394, 662, 788, 985, 1324, 1576, 1655, 1970, 2648, 3310, 3940, 6620, 7880, 13240, 65207, 130414, 260828, 326035, 521656, 652070, 1304140, 2608280]

約数ペア:

[(1, 2608280), (2, 1304140), (4, 652070), (5, 521656), (8, 326035), (10, 260828), (20, 130414), (40, 65207), (197, 13240), (331, 7880), (394, 6620), (662, 3940), (788, 3310), (985, 2648), (1324, 1970), (1576, 1655)]