18040120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3391}}^1$

素因数の和:3428

約数の個数: 64

約数和(自身を含む): 48844800

約数和(自身を除く): 30804680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 380, 532, 665, 760, 1064, 1330, 2660, 3391, 5320, 6782, 13564, 16955, 23737, 27128, 33910, 47474, 64429, 67820, 94948, 118685, 128858, 135640, 189896, 237370, 257716, 322145, 451003, 474740, 515432, 644290, 902006, 949480, 1288580, 1804012, 2255015, 2577160, 3608024, 4510030, 9020060, 18040120]

約数ペア:

[(1, 18040120), (2, 9020060), (4, 4510030), (5, 3608024), (7, 2577160), (8, 2255015), (10, 1804012), (14, 1288580), (19, 949480), (20, 902006), (28, 644290), (35, 515432), (38, 474740), (40, 451003), (56, 322145), (70, 257716), (76, 237370), (95, 189896), (133, 135640), (140, 128858), (152, 118685), (190, 94948), (266, 67820), (280, 64429), (380, 47474), (532, 33910), (665, 27128), (760, 23737), (1064, 16955), (1330, 13564), (2660, 6782), (3391, 5320)]