204060

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1$

素因数の和:210

約数の個数: 48

約数和(自身を含む): 604800

約数和(自身を除く): 400740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 179, 190, 228, 285, 358, 380, 537, 570, 716, 895, 1074, 1140, 1790, 2148, 2685, 3401, 3580, 5370, 6802, 10203, 10740, 13604, 17005, 20406, 34010, 40812, 51015, 68020, 102030, 204060]

約数ペア:

[(1, 204060), (2, 102030), (3, 68020), (4, 51015), (5, 40812), (6, 34010), (10, 20406), (12, 17005), (15, 13604), (19, 10740), (20, 10203), (30, 6802), (38, 5370), (57, 3580), (60, 3401), (76, 2685), (95, 2148), (114, 1790), (179, 1140), (190, 1074), (228, 895), (285, 716), (358, 570), (380, 537)]