289331375

素因数分解:

$5^3\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{641}}^1$

素因数の和:836

約数の個数: 32

約数和(自身を含む): 379776384

約数和(自身を除く): 90445009

約数列:

[1, 5, 23, 25, 115, 125, 157, 575, 641, 785, 2875, 3205, 3611, 3925, 14743, 16025, 18055, 19625, 73715, 80125, 90275, 100637, 368575, 451375, 503185, 1842875, 2314651, 2515925, 11573255, 12579625, 57866275, 289331375]

約数ペア:

[(1, 289331375), (5, 57866275), (23, 12579625), (25, 11573255), (115, 2515925), (125, 2314651), (157, 1842875), (575, 503185), (641, 451375), (785, 368575), (2875, 100637), (3205, 90275), (3611, 80125), (3925, 73715), (14743, 19625), (16025, 18055)]