2804375

素因数分解:

$5^4\times 7^1\times {\mathrm{641}}^1$

素因数の和:668

約数の個数: 20

約数和(自身を含む): 4011216

約数和(自身を除く): 1206841

約数列:

[1, 5, 7, 25, 35, 125, 175, 625, 641, 875, 3205, 4375, 4487, 16025, 22435, 80125, 112175, 400625, 560875, 2804375]

約数ペア:

[(1, 2804375), (5, 560875), (7, 400625), (25, 112175), (35, 80125), (125, 22435), (175, 16025), (625, 4487), (641, 4375), (875, 3205)]