19961860

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{271}}^1$

素因数の和:436

約数の個数: 48

約数和(自身を含む): 43868160

約数和(自身を除く): 23906300

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 127, 145, 254, 271, 290, 508, 542, 580, 635, 1084, 1270, 1355, 2540, 2710, 3683, 5420, 7366, 7859, 14732, 15718, 18415, 31436, 34417, 36830, 39295, 68834, 73660, 78590, 137668, 157180, 172085, 344170, 688340, 998093, 1996186, 3992372, 4990465, 9980930, 19961860]

約数ペア:

[(1, 19961860), (2, 9980930), (4, 4990465), (5, 3992372), (10, 1996186), (20, 998093), (29, 688340), (58, 344170), (116, 172085), (127, 157180), (145, 137668), (254, 78590), (271, 73660), (290, 68834), (508, 39295), (542, 36830), (580, 34417), (635, 31436), (1084, 18415), (1270, 15718), (1355, 14732), (2540, 7859), (2710, 7366), (3683, 5420)]