420120220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1615847}}^1$

素因数の和:1615869

約数の個数: 24

約数和(自身を含む): 950118624

約数和(自身を除く): 529998404

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1615847, 3231694, 6463388, 8079235, 16158470, 21006011, 32316940, 42012022, 84024044, 105030055, 210060110, 420120220]

約数ペア:

[(1, 420120220), (2, 210060110), (4, 105030055), (5, 84024044), (10, 42012022), (13, 32316940), (20, 21006011), (26, 16158470), (52, 8079235), (65, 6463388), (130, 3231694), (260, 1615847)]