80796640

素因数分解:

$2^5\times 5^1\times {\mathrm{67}}^1\times {\mathrm{7537}}^1$

素因数の和:7619

約数の個数: 48

約数和(自身を含む): 193756752

約数和(自身を除く): 112960112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 67, 80, 134, 160, 268, 335, 536, 670, 1072, 1340, 2144, 2680, 5360, 7537, 10720, 15074, 30148, 37685, 60296, 75370, 120592, 150740, 241184, 301480, 504979, 602960, 1009958, 1205920, 2019916, 2524895, 4039832, 5049790, 8079664, 10099580, 16159328, 20199160, 40398320, 80796640]

約数ペア:

[(1, 80796640), (2, 40398320), (4, 20199160), (5, 16159328), (8, 10099580), (10, 8079664), (16, 5049790), (20, 4039832), (32, 2524895), (40, 2019916), (67, 1205920), (80, 1009958), (134, 602960), (160, 504979), (268, 301480), (335, 241184), (536, 150740), (670, 120592), (1072, 75370), (1340, 60296), (2144, 37685), (2680, 30148), (5360, 15074), (7537, 10720)]