9812500

素因数分解:

$2^2\times 5^6\times {\mathrm{157}}^1$

素因数の和:191

約数の個数: 42

約数和(自身を含む): 21601286

約数和(自身を除く): 11788786

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 157, 250, 314, 500, 625, 628, 785, 1250, 1570, 2500, 3125, 3140, 3925, 6250, 7850, 12500, 15625, 15700, 19625, 31250, 39250, 62500, 78500, 98125, 196250, 392500, 490625, 981250, 1962500, 2453125, 4906250, 9812500]

約数ペア:

[(1, 9812500), (2, 4906250), (4, 2453125), (5, 1962500), (10, 981250), (20, 490625), (25, 392500), (50, 196250), (100, 98125), (125, 78500), (157, 62500), (250, 39250), (314, 31250), (500, 19625), (625, 15700), (628, 15625), (785, 12500), (1250, 7850), (1570, 6250), (2500, 3925), (3125, 3140)]