991354805

素因数分解:

$5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{179}}^1\times {\mathrm{2003}}^1$

素因数の和:2273

約数の個数: 32

約数和(自身を含む): 1385164800

約数和(自身を除く): 393809995

約数列:

[1, 5, 7, 35, 79, 179, 395, 553, 895, 1253, 2003, 2765, 6265, 10015, 14021, 14141, 70105, 70705, 98987, 158237, 358537, 494935, 791185, 1107659, 1792685, 2509759, 5538295, 12548795, 28324423, 141622115, 198270961, 991354805]

約数ペア:

[(1, 991354805), (5, 198270961), (7, 141622115), (35, 28324423), (79, 12548795), (179, 5538295), (395, 2509759), (553, 1792685), (895, 1107659), (1253, 791185), (2003, 494935), (2765, 358537), (6265, 158237), (10015, 98987), (14021, 70705), (14141, 70105)]