28404375

素因数分解:

$3^1\times 5^4\times {\mathrm{15149}}^1$

素因数の和:15172

約数の個数: 20

約数和(自身を含む): 47328600

約数和(自身を除く): 18924225

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 625, 1875, 15149, 45447, 75745, 227235, 378725, 1136175, 1893625, 5680875, 9468125, 28404375]

約数ペア:

[(1, 28404375), (3, 9468125), (5, 5680875), (15, 1893625), (25, 1136175), (75, 378725), (125, 227235), (375, 75745), (625, 45447), (1875, 15149)]