2580025

素因数分解:

$5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{641}}^1$

素因数の和:681

約数の個数: 24

約数和(自身を含む): 3821184

約数和(自身を除く): 1241159

約数列:

[1, 5, 7, 23, 25, 35, 115, 161, 175, 575, 641, 805, 3205, 4025, 4487, 14743, 16025, 22435, 73715, 103201, 112175, 368575, 516005, 2580025]

約数ペア:

[(1, 2580025), (5, 516005), (7, 368575), (23, 112175), (25, 103201), (35, 73715), (115, 22435), (161, 16025), (175, 14743), (575, 4487), (641, 4025), (805, 3205)]