201616640

素因数分解:

$2^8\times 5^1\times {\mathrm{157513}}^1$

素因数の和:157534

約数の個数: 36

約数和(自身を含む): 482937924

約数和(自身を除く): 281321284

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 157513, 315026, 630052, 787565, 1260104, 1575130, 2520208, 3150260, 5040416, 6300520, 10080832, 12601040, 20161664, 25202080, 40323328, 50404160, 100808320, 201616640]

約数ペア:

[(1, 201616640), (2, 100808320), (4, 50404160), (5, 40323328), (8, 25202080), (10, 20161664), (16, 12601040), (20, 10080832), (32, 6300520), (40, 5040416), (64, 3150260), (80, 2520208), (128, 1575130), (160, 1260104), (256, 787565), (320, 630052), (640, 315026), (1280, 157513)]