20236875

素因数分解:

$3^1\times 5^4\times {\mathrm{43}}^1\times {\mathrm{251}}^1$

素因数の和:317

約数の個数: 40

約数和(自身を含む): 34638912

約数和(自身を除く): 14402037

約数列:

[1, 3, 5, 15, 25, 43, 75, 125, 129, 215, 251, 375, 625, 645, 753, 1075, 1255, 1875, 3225, 3765, 5375, 6275, 10793, 16125, 18825, 26875, 31375, 32379, 53965, 80625, 94125, 156875, 161895, 269825, 470625, 809475, 1349125, 4047375, 6745625, 20236875]

約数ペア:

[(1, 20236875), (3, 6745625), (5, 4047375), (15, 1349125), (25, 809475), (43, 470625), (75, 269825), (125, 161895), (129, 156875), (215, 94125), (251, 80625), (375, 53965), (625, 32379), (645, 31375), (753, 26875), (1075, 18825), (1255, 16125), (1875, 10793), (3225, 6275), (3765, 5375)]