68751250

素因数分解:

$2^1\times 5^4\times {\mathrm{55001}}^1$

素因数の和:55023

約数の個数: 20

約数和(自身を含む): 128869686

約数和(自身を除く): 60118436

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 625, 1250, 55001, 110002, 275005, 550010, 1375025, 2750050, 6875125, 13750250, 34375625, 68751250]

約数ペア:

[(1, 68751250), (2, 34375625), (5, 13750250), (10, 6875125), (25, 2750050), (50, 1375025), (125, 550010), (250, 275005), (625, 110002), (1250, 55001)]