89659640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{320213}}^1$

素因数の和:320231

約数の個数: 32

約数和(自身を含む): 230554080

約数和(自身を除く): 140894440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 320213, 640426, 1280852, 1601065, 2241491, 2561704, 3202130, 4482982, 6404260, 8965964, 11207455, 12808520, 17931928, 22414910, 44829820, 89659640]

約数ペア:

[(1, 89659640), (2, 44829820), (4, 22414910), (5, 17931928), (7, 12808520), (8, 11207455), (10, 8965964), (14, 6404260), (20, 4482982), (28, 3202130), (35, 2561704), (40, 2241491), (56, 1601065), (70, 1280852), (140, 640426), (280, 320213)]