20018031865

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{251}}^1\times {\mathrm{18313}}^1$

素因数の和:18649

約数の個数: 32

約数和(自身を含む): 26361611136

約数和(自身を除く): 6343579271

約数列:

[1, 5, 13, 65, 67, 251, 335, 871, 1255, 3263, 4355, 16315, 16817, 18313, 84085, 91565, 218621, 238069, 1093105, 1190345, 1226971, 4596563, 6134855, 15950623, 22982815, 59755319, 79753115, 298776595, 307969721, 1539848605, 4003606373, 20018031865]

約数ペア:

[(1, 20018031865), (5, 4003606373), (13, 1539848605), (65, 307969721), (67, 298776595), (251, 79753115), (335, 59755319), (871, 22982815), (1255, 15950623), (3263, 6134855), (4355, 4596563), (16315, 1226971), (16817, 1190345), (18313, 1093105), (84085, 238069), (91565, 218621)]