8218420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1249}}^1$

素因数の和:1312

約数の個数: 48

約数和(自身を含む): 20160000

約数和(自身を除く): 11941580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 188, 235, 329, 470, 658, 940, 1249, 1316, 1645, 2498, 3290, 4996, 6245, 6580, 8743, 12490, 17486, 24980, 34972, 43715, 58703, 87430, 117406, 174860, 234812, 293515, 410921, 587030, 821842, 1174060, 1643684, 2054605, 4109210, 8218420]

約数ペア:

[(1, 8218420), (2, 4109210), (4, 2054605), (5, 1643684), (7, 1174060), (10, 821842), (14, 587030), (20, 410921), (28, 293515), (35, 234812), (47, 174860), (70, 117406), (94, 87430), (140, 58703), (188, 43715), (235, 34972), (329, 24980), (470, 17486), (658, 12490), (940, 8743), (1249, 6580), (1316, 6245), (1645, 4996), (2498, 3290)]