80829860

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{98573}}^1$

素因数の和:98623

約数の個数: 24

約数和(自身を含む): 173884536

約数和(自身を除く): 93054676

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 98573, 197146, 394292, 492865, 985730, 1971460, 4041493, 8082986, 16165972, 20207465, 40414930, 80829860]

約数ペア:

[(1, 80829860), (2, 40414930), (4, 20207465), (5, 16165972), (10, 8082986), (20, 4041493), (41, 1971460), (82, 985730), (164, 492865), (205, 394292), (410, 197146), (820, 98573)]