20797210

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{823}}^1$

素因数の和:875

約数の個数: 48

約数和(自身を含む): 45207936

約数和(自身を除く): 24410726

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 361, 665, 722, 823, 1330, 1646, 1805, 2527, 3610, 4115, 5054, 5761, 8230, 11522, 12635, 15637, 25270, 28805, 31274, 57610, 78185, 109459, 156370, 218918, 297103, 547295, 594206, 1094590, 1485515, 2079721, 2971030, 4159442, 10398605, 20797210]

約数ペア:

[(1, 20797210), (2, 10398605), (5, 4159442), (7, 2971030), (10, 2079721), (14, 1485515), (19, 1094590), (35, 594206), (38, 547295), (70, 297103), (95, 218918), (133, 156370), (190, 109459), (266, 78185), (361, 57610), (665, 31274), (722, 28805), (823, 25270), (1330, 15637), (1646, 12635), (1805, 11522), (2527, 8230), (3610, 5761), (4115, 5054)]