1564980820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{337}}^2$

素因数の和:749

約数の個数: 72

約数和(自身を含む): 3616775064

約数和(自身を除く): 2051794244

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 130, 212, 260, 265, 337, 530, 674, 689, 1060, 1348, 1378, 1685, 2756, 3370, 3445, 4381, 6740, 6890, 8762, 13780, 17524, 17861, 21905, 35722, 43810, 71444, 87620, 89305, 113569, 178610, 227138, 232193, 357220, 454276, 464386, 567845, 928772, 1135690, 1160965, 1476397, 2271380, 2321930, 2952794, 4643860, 5905588, 6019157, 7381985, 12038314, 14763970, 24076628, 29527940, 30095785, 60191570, 78249041, 120383140, 156498082, 312996164, 391245205, 782490410, 1564980820]

約数ペア:

[(1, 1564980820), (2, 782490410), (4, 391245205), (5, 312996164), (10, 156498082), (13, 120383140), (20, 78249041), (26, 60191570), (52, 30095785), (53, 29527940), (65, 24076628), (106, 14763970), (130, 12038314), (212, 7381985), (260, 6019157), (265, 5905588), (337, 4643860), (530, 2952794), (674, 2321930), (689, 2271380), (1060, 1476397), (1348, 1160965), (1378, 1135690), (1685, 928772), (2756, 567845), (3370, 464386), (3445, 454276), (4381, 357220), (6740, 232193), (6890, 227138), (8762, 178610), (13780, 113569), (17524, 89305), (17861, 87620), (21905, 71444), (35722, 43810)]