208221015

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{761}}^1$

素因数の和:852

約数の個数: 64

約数和(自身を含む): 375269760

約数和(自身を除く): 167048745

約数列:

[1, 3, 5, 15, 17, 29, 37, 51, 85, 87, 111, 145, 185, 255, 435, 493, 555, 629, 761, 1073, 1479, 1887, 2283, 2465, 3145, 3219, 3805, 5365, 7395, 9435, 11415, 12937, 16095, 18241, 22069, 28157, 38811, 54723, 64685, 66207, 84471, 91205, 110345, 140785, 194055, 273615, 331035, 375173, 422355, 478669, 816553, 1125519, 1436007, 1875865, 2393345, 2449659, 4082765, 5627595, 7180035, 12248295, 13881401, 41644203, 69407005, 208221015]

約数ペア:

[(1, 208221015), (3, 69407005), (5, 41644203), (15, 13881401), (17, 12248295), (29, 7180035), (37, 5627595), (51, 4082765), (85, 2449659), (87, 2393345), (111, 1875865), (145, 1436007), (185, 1125519), (255, 816553), (435, 478669), (493, 422355), (555, 375173), (629, 331035), (761, 273615), (1073, 194055), (1479, 140785), (1887, 110345), (2283, 91205), (2465, 84471), (3145, 66207), (3219, 64685), (3805, 54723), (5365, 38811), (7395, 28157), (9435, 22069), (11415, 18241), (12937, 16095)]