203906105

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1$

素因数の和:270

約数の個数: 48

約数和(自身を含む): 281044080

約数和(自身を除く): 77137975

約数列:

[1, 5, 13, 29, 53, 65, 145, 157, 169, 265, 377, 689, 785, 845, 1537, 1885, 2041, 3445, 4553, 4901, 7685, 8321, 8957, 10205, 19981, 22765, 24505, 26533, 41605, 44785, 59189, 99905, 108173, 132665, 241309, 259753, 295945, 540865, 769457, 1206545, 1298765, 1406249, 3137017, 3847285, 7031245, 15685085, 40781221, 203906105]

約数ペア:

[(1, 203906105), (5, 40781221), (13, 15685085), (29, 7031245), (53, 3847285), (65, 3137017), (145, 1406249), (157, 1298765), (169, 1206545), (265, 769457), (377, 540865), (689, 295945), (785, 259753), (845, 241309), (1537, 132665), (1885, 108173), (2041, 99905), (3445, 59189), (4553, 44785), (4901, 41605), (7685, 26533), (8321, 24505), (8957, 22765), (10205, 19981)]