5214820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{647}}^1$

素因数の和:700

約数の個数: 48

約数和(自身を含む): 12192768

約数和(自身を除く): 6977948

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 647, 806, 1294, 1612, 2015, 2588, 3235, 4030, 6470, 8060, 8411, 12940, 16822, 20057, 33644, 40114, 42055, 80228, 84110, 100285, 168220, 200570, 260741, 401140, 521482, 1042964, 1303705, 2607410, 5214820]

約数ペア:

[(1, 5214820), (2, 2607410), (4, 1303705), (5, 1042964), (10, 521482), (13, 401140), (20, 260741), (26, 200570), (31, 168220), (52, 100285), (62, 84110), (65, 80228), (124, 42055), (130, 40114), (155, 33644), (260, 20057), (310, 16822), (403, 12940), (620, 8411), (647, 8060), (806, 6470), (1294, 4030), (1612, 3235), (2015, 2588)]