858000975

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{880001}}^1$

素因数の和:880027

約数の個数: 24

約数和(自身を含む): 1527683472

約数和(自身を除く): 669682497

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 975, 880001, 2640003, 4400005, 11440013, 13200015, 22000025, 34320039, 57200065, 66000075, 171600195, 286000325, 858000975]

約数ペア:

[(1, 858000975), (3, 286000325), (5, 171600195), (13, 66000075), (15, 57200065), (25, 34320039), (39, 22000025), (65, 13200015), (75, 11440013), (195, 4400005), (325, 2640003), (975, 880001)]