204401620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{537899}}^1$

素因数の和:537927

約数の個数: 24

約数和(自身を含む): 451836000

約数和(自身を除く): 247434380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 537899, 1075798, 2151596, 2689495, 5378990, 10220081, 10757980, 20440162, 40880324, 51100405, 102200810, 204401620]

約数ペア:

[(1, 204401620), (2, 102200810), (4, 51100405), (5, 40880324), (10, 20440162), (19, 10757980), (20, 10220081), (38, 5378990), (76, 2689495), (95, 2151596), (190, 1075798), (380, 537899)]