308977988

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{251}}^1\times {\mathrm{277}}^1$

素因数の和:644

約数の個数: 48

約数和(自身を含む): 600239808

約数和(自身を除く): 291261820

約数列:

[1, 2, 4, 11, 22, 44, 101, 202, 251, 277, 404, 502, 554, 1004, 1108, 1111, 2222, 2761, 3047, 4444, 5522, 6094, 11044, 12188, 25351, 27977, 50702, 55954, 69527, 101404, 111908, 139054, 278108, 278861, 307747, 557722, 615494, 764797, 1115444, 1230988, 1529594, 3059188, 7022227, 14044454, 28088908, 77244497, 154488994, 308977988]

約数ペア:

[(1, 308977988), (2, 154488994), (4, 77244497), (11, 28088908), (22, 14044454), (44, 7022227), (101, 3059188), (202, 1529594), (251, 1230988), (277, 1115444), (404, 764797), (502, 615494), (554, 557722), (1004, 307747), (1108, 278861), (1111, 278108), (2222, 139054), (2761, 111908), (3047, 101404), (4444, 69527), (5522, 55954), (6094, 50702), (11044, 27977), (12188, 25351)]