209610880

素因数分解:

$2^7\times 5^1\times {\mathrm{327517}}^1$

素因数の和:327536

約数の個数: 32

約数和(自身を含む): 501102540

約数和(自身を除く): 291491660

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 327517, 655034, 1310068, 1637585, 2620136, 3275170, 5240272, 6550340, 10480544, 13100680, 20961088, 26201360, 41922176, 52402720, 104805440, 209610880]

約数ペア:

[(1, 209610880), (2, 104805440), (4, 52402720), (5, 41922176), (8, 26201360), (10, 20961088), (16, 13100680), (20, 10480544), (32, 6550340), (40, 5240272), (64, 3275170), (80, 2620136), (128, 1637585), (160, 1310068), (320, 655034), (640, 327517)]