86847740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{20011}}^1$

素因数の和:20058

約数の個数: 48

約数和(自身を含む): 215169024

約数和(自身を除く): 128321284

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 20011, 40022, 80044, 100055, 140077, 200110, 280154, 400220, 560308, 620341, 700385, 1240682, 1400770, 2481364, 2801540, 3101705, 4342387, 6203410, 8684774, 12406820, 17369548, 21711935, 43423870, 86847740]

約数ペア:

[(1, 86847740), (2, 43423870), (4, 21711935), (5, 17369548), (7, 12406820), (10, 8684774), (14, 6203410), (20, 4342387), (28, 3101705), (31, 2801540), (35, 2481364), (62, 1400770), (70, 1240682), (124, 700385), (140, 620341), (155, 560308), (217, 400220), (310, 280154), (434, 200110), (620, 140077), (868, 100055), (1085, 80044), (2170, 40022), (4340, 20011)]