20578793732

素因数分解:

$2^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{263}}^1\times {\mathrm{38281}}^1$

素因数の和:38628

約数の個数: 48

約数和(自身を含む): 41881120512

約数和(自身を除く): 21302326780

約数列:

[1, 2, 4, 7, 14, 28, 73, 146, 263, 292, 511, 526, 1022, 1052, 1841, 2044, 3682, 7364, 19199, 38281, 38398, 76562, 76796, 134393, 153124, 267967, 268786, 535934, 537572, 1071868, 2794513, 5589026, 10067903, 11178052, 19561591, 20135806, 39123182, 40271612, 70475321, 78246364, 140950642, 281901284, 734956919, 1469913838, 2939827676, 5144698433, 10289396866, 20578793732]

約数ペア:

[(1, 20578793732), (2, 10289396866), (4, 5144698433), (7, 2939827676), (14, 1469913838), (28, 734956919), (73, 281901284), (146, 140950642), (263, 78246364), (292, 70475321), (511, 40271612), (526, 39123182), (1022, 20135806), (1052, 19561591), (1841, 11178052), (2044, 10067903), (3682, 5589026), (7364, 2794513), (19199, 1071868), (38281, 537572), (38398, 535934), (76562, 268786), (76796, 267967), (134393, 153124)]