280802260

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{825889}}^1$

素因数の和:825915

約数の個数: 24

約数和(自身を含む): 624372840

約数和(自身を除く): 343570580

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 825889, 1651778, 3303556, 4129445, 8258890, 14040113, 16517780, 28080226, 56160452, 70200565, 140401130, 280802260]

約数ペア:

[(1, 280802260), (2, 140401130), (4, 70200565), (5, 56160452), (10, 28080226), (17, 16517780), (20, 14040113), (34, 8258890), (68, 4129445), (85, 3303556), (170, 1651778), (340, 825889)]