25464440

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{6563}}^1$

素因数の和:6671

約数の個数: 32

約数和(自身を含む): 57894480

約数和(自身を除く): 32430040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 6563, 13126, 26252, 32815, 52504, 65630, 131260, 262520, 636611, 1273222, 2546444, 3183055, 5092888, 6366110, 12732220, 25464440]

約数ペア:

[(1, 25464440), (2, 12732220), (4, 6366110), (5, 5092888), (8, 3183055), (10, 2546444), (20, 1273222), (40, 636611), (97, 262520), (194, 131260), (388, 65630), (485, 52504), (776, 32815), (970, 26252), (1940, 13126), (3880, 6563)]