18710980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{293}}^1$

素因数の和:436

約数の個数: 48

約数和(自身を含む): 41094144

約数和(自身を除く): 22383164

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 103, 124, 155, 206, 293, 310, 412, 515, 586, 620, 1030, 1172, 1465, 2060, 2930, 3193, 5860, 6386, 9083, 12772, 15965, 18166, 30179, 31930, 36332, 45415, 60358, 63860, 90830, 120716, 150895, 181660, 301790, 603580, 935549, 1871098, 3742196, 4677745, 9355490, 18710980]

約数ペア:

[(1, 18710980), (2, 9355490), (4, 4677745), (5, 3742196), (10, 1871098), (20, 935549), (31, 603580), (62, 301790), (103, 181660), (124, 150895), (155, 120716), (206, 90830), (293, 63860), (310, 60358), (412, 45415), (515, 36332), (586, 31930), (620, 30179), (1030, 18166), (1172, 15965), (1465, 12772), (2060, 9083), (2930, 6386), (3193, 5860)]