78126250

素因数分解:

$2^1\times 5^4\times {\mathrm{62501}}^1$

素因数の和:62523

約数の個数: 20

約数和(自身を含む): 146442186

約数和(自身を除く): 68315936

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 625, 1250, 62501, 125002, 312505, 625010, 1562525, 3125050, 7812625, 15625250, 39063125, 78126250]

約数ペア:

[(1, 78126250), (2, 39063125), (5, 15625250), (10, 7812625), (25, 3125050), (50, 1562525), (125, 625010), (250, 312505), (625, 125002), (1250, 62501)]