18880640

素因数分解:

$2^7\times 5^1\times {\mathrm{29501}}^1$

素因数の和:29520

約数の個数: 32

約数和(自身を含む): 45138060

約数和(自身を除く): 26257420

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 29501, 59002, 118004, 147505, 236008, 295010, 472016, 590020, 944032, 1180040, 1888064, 2360080, 3776128, 4720160, 9440320, 18880640]

約数ペア:

[(1, 18880640), (2, 9440320), (4, 4720160), (5, 3776128), (8, 2360080), (10, 1888064), (16, 1180040), (20, 944032), (32, 590020), (40, 472016), (64, 295010), (80, 236008), (128, 147505), (160, 118004), (320, 59002), (640, 29501)]