80958800

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{15569}}^1$

素因数の和:15600

約数の個数: 60

約数和(自身を含む): 209478780

約数和(自身を除く): 128519980

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 520, 650, 1040, 1300, 2600, 5200, 15569, 31138, 62276, 77845, 124552, 155690, 202397, 249104, 311380, 389225, 404794, 622760, 778450, 809588, 1011985, 1245520, 1556900, 1619176, 2023970, 3113800, 3238352, 4047940, 5059925, 6227600, 8095880, 10119850, 16191760, 20239700, 40479400, 80958800]

約数ペア:

[(1, 80958800), (2, 40479400), (4, 20239700), (5, 16191760), (8, 10119850), (10, 8095880), (13, 6227600), (16, 5059925), (20, 4047940), (25, 3238352), (26, 3113800), (40, 2023970), (50, 1619176), (52, 1556900), (65, 1245520), (80, 1011985), (100, 809588), (104, 778450), (130, 622760), (200, 404794), (208, 389225), (260, 311380), (325, 249104), (400, 202397), (520, 155690), (650, 124552), (1040, 77845), (1300, 62276), (2600, 31138), (5200, 15569)]