18679640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{66713}}^1$

素因数の和:66731

約数の個数: 32

約数和(自身を含む): 48034080

約数和(自身を除く): 29354440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 66713, 133426, 266852, 333565, 466991, 533704, 667130, 933982, 1334260, 1867964, 2334955, 2668520, 3735928, 4669910, 9339820, 18679640]

約数ペア:

[(1, 18679640), (2, 9339820), (4, 4669910), (5, 3735928), (7, 2668520), (8, 2334955), (10, 1867964), (14, 1334260), (20, 933982), (28, 667130), (35, 533704), (40, 466991), (56, 333565), (70, 266852), (140, 133426), (280, 66713)]