208778875

素因数分解:

$5^3\times {\mathrm{59}}^1\times {\mathrm{28309}}^1$

素因数の和:28383

約数の個数: 16

約数和(自身を含む): 264981600

約数和(自身を除く): 56202725

約数列:

[1, 5, 25, 59, 125, 295, 1475, 7375, 28309, 141545, 707725, 1670231, 3538625, 8351155, 41755775, 208778875]

約数ペア:

[(1, 208778875), (5, 41755775), (25, 8351155), (59, 3538625), (125, 1670231), (295, 707725), (1475, 141545), (7375, 28309)]