1864375

素因数分解:

$5^4\times {\mathrm{19}}^1\times {\mathrm{157}}^1$

素因数の和:196

約数の個数: 20

約数和(自身を含む): 2467960

約数和(自身を除く): 603585

約数列:

[1, 5, 19, 25, 95, 125, 157, 475, 625, 785, 2375, 2983, 3925, 11875, 14915, 19625, 74575, 98125, 372875, 1864375]

約数ペア:

[(1, 1864375), (5, 372875), (19, 98125), (25, 74575), (95, 19625), (125, 14915), (157, 11875), (475, 3925), (625, 2983), (785, 2375)]