7978180

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{1163}}^1$

素因数の和:1193

約数の個数: 48

約数和(自身を含む): 19555200

約数和(自身を除く): 11577020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1163, 1372, 1715, 2326, 3430, 4652, 5815, 6860, 8141, 11630, 16282, 23260, 32564, 40705, 56987, 81410, 113974, 162820, 227948, 284935, 398909, 569870, 797818, 1139740, 1595636, 1994545, 3989090, 7978180]

約数ペア:

[(1, 7978180), (2, 3989090), (4, 1994545), (5, 1595636), (7, 1139740), (10, 797818), (14, 569870), (20, 398909), (28, 284935), (35, 227948), (49, 162820), (70, 113974), (98, 81410), (140, 56987), (196, 40705), (245, 32564), (343, 23260), (490, 16282), (686, 11630), (980, 8141), (1163, 6860), (1372, 5815), (1715, 4652), (2326, 3430)]