161854540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{3109}}^1$

素因数の和:3274

約数の個数: 48

約数和(自身を含む): 360511200

約数和(自身を除く): 198656660

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 137, 190, 274, 380, 548, 685, 1370, 2603, 2740, 3109, 5206, 6218, 10412, 12436, 13015, 15545, 26030, 31090, 52060, 59071, 62180, 118142, 236284, 295355, 425933, 590710, 851866, 1181420, 1703732, 2129665, 4259330, 8092727, 8518660, 16185454, 32370908, 40463635, 80927270, 161854540]

約数ペア:

[(1, 161854540), (2, 80927270), (4, 40463635), (5, 32370908), (10, 16185454), (19, 8518660), (20, 8092727), (38, 4259330), (76, 2129665), (95, 1703732), (137, 1181420), (190, 851866), (274, 590710), (380, 425933), (548, 295355), (685, 236284), (1370, 118142), (2603, 62180), (2740, 59071), (3109, 52060), (5206, 31090), (6218, 26030), (10412, 15545), (12436, 13015)]