53149180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{5347}}^1$

素因数の和:5434

約数の個数: 48

約数和(自身を含む): 129378816

約数和(自身を除く): 76229636

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 5347, 9940, 10694, 21388, 26735, 37429, 53470, 74858, 106940, 149716, 187145, 374290, 379637, 748580, 759274, 1518548, 1898185, 2657459, 3796370, 5314918, 7592740, 10629836, 13287295, 26574590, 53149180]

約数ペア:

[(1, 53149180), (2, 26574590), (4, 13287295), (5, 10629836), (7, 7592740), (10, 5314918), (14, 3796370), (20, 2657459), (28, 1898185), (35, 1518548), (70, 759274), (71, 748580), (140, 379637), (142, 374290), (284, 187145), (355, 149716), (497, 106940), (710, 74858), (994, 53470), (1420, 37429), (1988, 26735), (2485, 21388), (4970, 10694), (5347, 9940)]