80709640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{3109}}^1$

素因数の和:3190

約数の個数: 64

約数和(自身を含む): 201528000

約数和(自身を除く): 120818360

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 59, 88, 110, 118, 220, 236, 295, 440, 472, 590, 649, 1180, 1298, 2360, 2596, 3109, 3245, 5192, 6218, 6490, 12436, 12980, 15545, 24872, 25960, 31090, 34199, 62180, 68398, 124360, 136796, 170995, 183431, 273592, 341990, 366862, 683980, 733724, 917155, 1367960, 1467448, 1834310, 2017741, 3668620, 4035482, 7337240, 8070964, 10088705, 16141928, 20177410, 40354820, 80709640]

約数ペア:

[(1, 80709640), (2, 40354820), (4, 20177410), (5, 16141928), (8, 10088705), (10, 8070964), (11, 7337240), (20, 4035482), (22, 3668620), (40, 2017741), (44, 1834310), (55, 1467448), (59, 1367960), (88, 917155), (110, 733724), (118, 683980), (220, 366862), (236, 341990), (295, 273592), (440, 183431), (472, 170995), (590, 136796), (649, 124360), (1180, 68398), (1298, 62180), (2360, 34199), (2596, 31090), (3109, 25960), (3245, 24872), (5192, 15545), (6218, 12980), (6490, 12436)]