28401250

素因数分解:

$2^1\times 5^4\times {\mathrm{22721}}^1$

素因数の和:22743

約数の個数: 20

約数和(自身を含む): 53237646

約数和(自身を除く): 24836396

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 625, 1250, 22721, 45442, 113605, 227210, 568025, 1136050, 2840125, 5680250, 14200625, 28401250]

約数ペア:

[(1, 28401250), (2, 14200625), (5, 5680250), (10, 2840125), (25, 1136050), (50, 568025), (125, 227210), (250, 113605), (625, 45442), (1250, 22721)]