20839473290

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{251}}^1\times {\mathrm{2557}}^1$

素因数の和:3023

約数の個数: 64

約数和(自身を含む): 40100272128

約数和(自身を除く): 19260798838

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 191, 251, 382, 502, 955, 1255, 1910, 2510, 2557, 3247, 4267, 5114, 6494, 8534, 12785, 16235, 21335, 25570, 32470, 42670, 43469, 47941, 86938, 95882, 217345, 239705, 434690, 479410, 488387, 641807, 814997, 976774, 1283614, 1629994, 2441935, 3209035, 4074985, 4883870, 6418070, 8149970, 8302579, 10910719, 16605158, 21821438, 41512895, 54553595, 83025790, 109107190, 122585137, 245170274, 612925685, 1225851370, 2083947329, 4167894658, 10419736645, 20839473290]

約数ペア:

[(1, 20839473290), (2, 10419736645), (5, 4167894658), (10, 2083947329), (17, 1225851370), (34, 612925685), (85, 245170274), (170, 122585137), (191, 109107190), (251, 83025790), (382, 54553595), (502, 41512895), (955, 21821438), (1255, 16605158), (1910, 10910719), (2510, 8302579), (2557, 8149970), (3247, 6418070), (4267, 4883870), (5114, 4074985), (6494, 3209035), (8534, 2441935), (12785, 1629994), (16235, 1283614), (21335, 976774), (25570, 814997), (32470, 641807), (42670, 488387), (43469, 479410), (47941, 434690), (86938, 239705), (95882, 217345)]