20090115088

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{256723}}^1$

素因数の和:256871

約数の個数: 40

約数和(自身を含む): 40046890208

約数和(自身を除く): 19956775120

約数列:

[1, 2, 4, 8, 16, 67, 73, 134, 146, 268, 292, 536, 584, 1072, 1168, 4891, 9782, 19564, 39128, 78256, 256723, 513446, 1026892, 2053784, 4107568, 17200441, 18740779, 34400882, 37481558, 68801764, 74963116, 137603528, 149926232, 275207056, 299852464, 1255632193, 2511264386, 5022528772, 10045057544, 20090115088]

約数ペア:

[(1, 20090115088), (2, 10045057544), (4, 5022528772), (8, 2511264386), (16, 1255632193), (67, 299852464), (73, 275207056), (134, 149926232), (146, 137603528), (268, 74963116), (292, 68801764), (536, 37481558), (584, 34400882), (1072, 18740779), (1168, 17200441), (4891, 4107568), (9782, 2053784), (19564, 1026892), (39128, 513446), (78256, 256723)]