20784440252

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{853}}^1\times {\mathrm{320609}}^1$

素因数の和:321485

約数の個数: 24

約数和(自身を含む): 38332131600

約数和(自身を除く): 17547691348

約数列:

[1, 2, 4, 19, 38, 76, 853, 1706, 3412, 16207, 32414, 64828, 320609, 641218, 1282436, 6091571, 12183142, 24366284, 273479477, 546958954, 1093917908, 5196110063, 10392220126, 20784440252]

約数ペア:

[(1, 20784440252), (2, 10392220126), (4, 5196110063), (19, 1093917908), (38, 546958954), (76, 273479477), (853, 24366284), (1706, 12183142), (3412, 6091571), (16207, 1282436), (32414, 641218), (64828, 320609)]