389707970

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{297487}}^1$

素因数の和:297625

約数の個数: 16

約数和(自身を含む): 706831488

約数和(自身を除く): 317123518

約数列:

[1, 2, 5, 10, 131, 262, 655, 1310, 297487, 594974, 1487435, 2974870, 38970797, 77941594, 194853985, 389707970]

約数ペア:

[(1, 389707970), (2, 194853985), (5, 77941594), (10, 38970797), (131, 2974870), (262, 1487435), (655, 594974), (1310, 297487)]