20147026315

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1213}}^1\times {\mathrm{15031}}^1$

素因数の和:16279

約数の個数: 32

約数和(自身を含む): 27592258176

約数和(自身を除く): 7445231861

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 1213, 6065, 15031, 15769, 20621, 75155, 78845, 103105, 195403, 255527, 268073, 977015, 1277635, 1340365, 3321851, 16609255, 18232603, 91163015, 237023839, 309954251, 1185119195, 1549771255, 4029405263, 20147026315]

約数ペア:

[(1, 20147026315), (5, 4029405263), (13, 1549771255), (17, 1185119195), (65, 309954251), (85, 237023839), (221, 91163015), (1105, 18232603), (1213, 16609255), (6065, 3321851), (15031, 1340365), (15769, 1277635), (20621, 977015), (75155, 268073), (78845, 255527), (103105, 195403)]