720914620

素因数分解:

$2^2\times 5^1\times {\mathrm{269}}^1\times {\mathrm{133999}}^1$

素因数の和:134277

約数の個数: 24

約数和(自身を含む): 1519560000

約数和(自身を除く): 798645380

約数列:

[1, 2, 4, 5, 10, 20, 269, 538, 1076, 1345, 2690, 5380, 133999, 267998, 535996, 669995, 1339990, 2679980, 36045731, 72091462, 144182924, 180228655, 360457310, 720914620]

約数ペア:

[(1, 720914620), (2, 360457310), (4, 180228655), (5, 144182924), (10, 72091462), (20, 36045731), (269, 2679980), (538, 1339990), (1076, 669995), (1345, 535996), (2690, 267998), (5380, 133999)]