1304140

素因数分解:

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

素因数の和:537

約数の個数: 24

約数和(自身を含む): 2760912

約数和(自身を除く): 1456772

約数列:

[1, 2, 4, 5, 10, 20, 197, 331, 394, 662, 788, 985, 1324, 1655, 1970, 3310, 3940, 6620, 65207, 130414, 260828, 326035, 652070, 1304140]

約数ペア:

[(1, 1304140), (2, 652070), (4, 326035), (5, 260828), (10, 130414), (20, 65207), (197, 6620), (331, 3940), (394, 3310), (662, 1970), (788, 1655), (985, 1324)]