80959420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{98731}}^1$

素因数の和:98781

約数の個数: 24

約数和(自身を含む): 174163248

約数和(自身を除く): 93203828

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 98731, 197462, 394924, 493655, 987310, 1974620, 4047971, 8095942, 16191884, 20239855, 40479710, 80959420]

約数ペア:

[(1, 80959420), (2, 40479710), (4, 20239855), (5, 16191884), (10, 8095942), (20, 4047971), (41, 1974620), (82, 987310), (164, 493655), (205, 394924), (410, 197462), (820, 98731)]