2661920

素因数分解:

$2^5\times 5^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1$

素因数の和:273

約数の個数: 48

約数和(自身を含む): 6386688

約数和(自身を除く): 3724768

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 127, 131, 160, 254, 262, 508, 524, 635, 655, 1016, 1048, 1270, 1310, 2032, 2096, 2540, 2620, 4064, 4192, 5080, 5240, 10160, 10480, 16637, 20320, 20960, 33274, 66548, 83185, 133096, 166370, 266192, 332740, 532384, 665480, 1330960, 2661920]

約数ペア:

[(1, 2661920), (2, 1330960), (4, 665480), (5, 532384), (8, 332740), (10, 266192), (16, 166370), (20, 133096), (32, 83185), (40, 66548), (80, 33274), (127, 20960), (131, 20320), (160, 16637), (254, 10480), (262, 10160), (508, 5240), (524, 5080), (635, 4192), (655, 4064), (1016, 2620), (1048, 2540), (1270, 2096), (1310, 2032)]