865989.0000000

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:296

約数の個数: 32

約数和(自身を含む): 4868640

約数和(自身を除く): 2393050

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 137, 139, 274, 278, 685, 695, 1370, 1390, 1781, 1807, 3562, 3614, 8905, 9035, 17810, 18070, 19043, 38086, 95215, 190430, 247559, 495118, 1237795, 2475590]

約数ペア:

[(1, 2475590), (2, 1237795), (5, 495118), (10, 247559), (13, 190430), (26, 95215), (65, 38086), (130, 19043), (137, 18070), (139, 17810), (274, 9035), (278, 8905), (685, 3614), (695, 3562), (1370, 1807), (1390, 1781)]