81096640

素因数分解:

$2^6\times 5^1\times {\mathrm{253427}}^1$

素因数の和:253444

約数の個数: 28

約数和(自身を含む): 193112136

約数和(自身を除く): 112015496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 253427, 506854, 1013708, 1267135, 2027416, 2534270, 4054832, 5068540, 8109664, 10137080, 16219328, 20274160, 40548320, 81096640]

約数ペア:

[(1, 81096640), (2, 40548320), (4, 20274160), (5, 16219328), (8, 10137080), (10, 8109664), (16, 5068540), (20, 4054832), (32, 2534270), (40, 2027416), (64, 1267135), (80, 1013708), (160, 506854), (320, 253427)]