20410785

素因数分解:

$3^5\times 5^1\times {\mathrm{107}}^1\times {\mathrm{157}}^1$

素因数の和:284

約数の個数: 48

約数和(自身を含む): 37267776

約数和(自身を除く): 16856991

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 107, 135, 157, 243, 321, 405, 471, 535, 785, 963, 1215, 1413, 1605, 2355, 2889, 4239, 4815, 7065, 8667, 12717, 14445, 16799, 21195, 26001, 38151, 43335, 50397, 63585, 83995, 130005, 151191, 190755, 251985, 453573, 755955, 1360719, 2267865, 4082157, 6803595, 20410785]

約数ペア:

[(1, 20410785), (3, 6803595), (5, 4082157), (9, 2267865), (15, 1360719), (27, 755955), (45, 453573), (81, 251985), (107, 190755), (135, 151191), (157, 130005), (243, 83995), (321, 63585), (405, 50397), (471, 43335), (535, 38151), (785, 26001), (963, 21195), (1215, 16799), (1413, 14445), (1605, 12717), (2355, 8667), (2889, 7065), (4239, 4815)]