1998400875

素因数分解:

$3^1\times 5^3\times {\mathrm{29}}^1\times {\mathrm{183761}}^1$

素因数の和:183808

約数の個数: 32

約数和(自身を含む): 3440024640

約数和(自身を除く): 1441623765

約数列:

[1, 3, 5, 15, 25, 29, 75, 87, 125, 145, 375, 435, 725, 2175, 3625, 10875, 183761, 551283, 918805, 2756415, 4594025, 5329069, 13782075, 15987207, 22970125, 26645345, 68910375, 79936035, 133226725, 399680175, 666133625, 1998400875]

約数ペア:

[(1, 1998400875), (3, 666133625), (5, 399680175), (15, 133226725), (25, 79936035), (29, 68910375), (75, 26645345), (87, 22970125), (125, 15987207), (145, 13782075), (375, 5329069), (435, 4594025), (725, 2756415), (2175, 918805), (3625, 551283), (10875, 183761)]