128302590

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{328981}}^1$

素因数の和:329004

約数の個数: 32

約数和(自身を含む): 331613856

約数和(自身を除く): 203311266

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 328981, 657962, 986943, 1644905, 1973886, 3289810, 4276753, 4934715, 8553506, 9869430, 12830259, 21383765, 25660518, 42767530, 64151295, 128302590]

約数ペア:

[(1, 128302590), (2, 64151295), (3, 42767530), (5, 25660518), (6, 21383765), (10, 12830259), (13, 9869430), (15, 8553506), (26, 4934715), (30, 4276753), (39, 3289810), (65, 1973886), (78, 1644905), (130, 986943), (195, 657962), (390, 328981)]