20383100

素因数分解:

$2^2\times 5^2\times {\mathrm{317}}^1\times {\mathrm{643}}^1$

素因数の和:974

約数の個数: 36

約数和(自身を含む): 44439864

約数和(自身を除く): 24056764

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 317, 634, 643, 1268, 1286, 1585, 2572, 3170, 3215, 6340, 6430, 7925, 12860, 15850, 16075, 31700, 32150, 64300, 203831, 407662, 815324, 1019155, 2038310, 4076620, 5095775, 10191550, 20383100]

約数ペア:

[(1, 20383100), (2, 10191550), (4, 5095775), (5, 4076620), (10, 2038310), (20, 1019155), (25, 815324), (50, 407662), (100, 203831), (317, 64300), (634, 32150), (643, 31700), (1268, 16075), (1286, 15850), (1585, 12860), (2572, 7925), (3170, 6430), (3215, 6340)]