78160040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{279143}}^1$

素因数の和:279161

約数の個数: 32

約数和(自身を含む): 200983680

約数和(自身を除く): 122823640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 279143, 558286, 1116572, 1395715, 1954001, 2233144, 2791430, 3908002, 5582860, 7816004, 9770005, 11165720, 15632008, 19540010, 39080020, 78160040]

約数ペア:

[(1, 78160040), (2, 39080020), (4, 19540010), (5, 15632008), (7, 11165720), (8, 9770005), (10, 7816004), (14, 5582860), (20, 3908002), (28, 2791430), (35, 2233144), (40, 1954001), (56, 1395715), (70, 1116572), (140, 558286), (280, 279143)]