20161651660

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{756251}}^1$

素因数の和:756334

約数の個数: 48

約数和(自身を含む): 44721718272

約数和(自身を除く): 24560066612

約数列:

[1, 2, 4, 5, 10, 20, 31, 43, 62, 86, 124, 155, 172, 215, 310, 430, 620, 860, 1333, 2666, 5332, 6665, 13330, 26660, 756251, 1512502, 3025004, 3781255, 7562510, 15125020, 23443781, 32518793, 46887562, 65037586, 93775124, 117218905, 130075172, 162593965, 234437810, 325187930, 468875620, 650375860, 1008082583, 2016165166, 4032330332, 5040412915, 10080825830, 20161651660]

約数ペア:

[(1, 20161651660), (2, 10080825830), (4, 5040412915), (5, 4032330332), (10, 2016165166), (20, 1008082583), (31, 650375860), (43, 468875620), (62, 325187930), (86, 234437810), (124, 162593965), (155, 130075172), (172, 117218905), (215, 93775124), (310, 65037586), (430, 46887562), (620, 32518793), (860, 23443781), (1333, 15125020), (2666, 7562510), (5332, 3781255), (6665, 3025004), (13330, 1512502), (26660, 756251)]