20176198565

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1543}}^1\times {\mathrm{2909}}^1$

素因数の和:4517

約数の個数: 32

約数和(自身を含む): 25879910400

約数和(自身を除く): 5703711835

約数列:

[1, 5, 29, 31, 145, 155, 899, 1543, 2909, 4495, 7715, 14545, 44747, 47833, 84361, 90179, 223735, 239165, 421805, 450895, 1387157, 2615191, 4488587, 6935785, 13075955, 22442935, 130169023, 139146197, 650845115, 695730985, 4035239713, 20176198565]

約数ペア:

[(1, 20176198565), (5, 4035239713), (29, 695730985), (31, 650845115), (145, 139146197), (155, 130169023), (899, 22442935), (1543, 13075955), (2909, 6935785), (4495, 4488587), (7715, 2615191), (14545, 1387157), (44747, 450895), (47833, 421805), (84361, 239165), (90179, 223735)]