999100

素因数分解:

$2^2\times 5^2\times {\mathrm{97}}^1\times {\mathrm{103}}^1$

素因数の和:214

約数の個数: 36

約数和(自身を含む): 2211664

約数和(自身を除く): 1212564

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 97, 100, 103, 194, 206, 388, 412, 485, 515, 970, 1030, 1940, 2060, 2425, 2575, 4850, 5150, 9700, 9991, 10300, 19982, 39964, 49955, 99910, 199820, 249775, 499550, 999100]

約数ペア:

[(1, 999100), (2, 499550), (4, 249775), (5, 199820), (10, 99910), (20, 49955), (25, 39964), (50, 19982), (97, 10300), (100, 9991), (103, 9700), (194, 5150), (206, 4850), (388, 2575), (412, 2425), (485, 2060), (515, 1940), (970, 1030)]