20197907548

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2729}}^1\times {\mathrm{20333}}^1$

素因数の和:23086

約数の個数: 48

約数和(自身を含む): 43521266880

約数和(自身を除く): 23323359332

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 2729, 5458, 10916, 19103, 20333, 35477, 38206, 40666, 70954, 76412, 81332, 141908, 142331, 248339, 264329, 284662, 496678, 528658, 569324, 993356, 1057316, 1850303, 3700606, 7401212, 55488757, 110977514, 221955028, 388421299, 721353841, 776842598, 1442707682, 1553685196, 2885415364, 5049476887, 10098953774, 20197907548]

約数ペア:

[(1, 20197907548), (2, 10098953774), (4, 5049476887), (7, 2885415364), (13, 1553685196), (14, 1442707682), (26, 776842598), (28, 721353841), (52, 388421299), (91, 221955028), (182, 110977514), (364, 55488757), (2729, 7401212), (5458, 3700606), (10916, 1850303), (19103, 1057316), (20333, 993356), (35477, 569324), (38206, 528658), (40666, 496678), (70954, 284662), (76412, 264329), (81332, 248339), (141908, 142331)]