87889228

素因数分解:

$2^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{19993}}^1$

素因数の和:20161

約数の個数: 24

約数和(自身を含む): 176906912

約数和(自身を除く): 89017684

約数列:

[1, 2, 4, 7, 14, 28, 157, 314, 628, 1099, 2198, 4396, 19993, 39986, 79972, 139951, 279902, 559804, 3138901, 6277802, 12555604, 21972307, 43944614, 87889228]

約数ペア:

[(1, 87889228), (2, 43944614), (4, 21972307), (7, 12555604), (14, 6277802), (28, 3138901), (157, 559804), (314, 279902), (628, 139951), (1099, 79972), (2198, 39986), (4396, 19993)]