20249915

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{823}}^1$

素因数の和:891

約数の個数: 32

約数和(自身を含む): 30059520

約数和(自身を除く): 9809605

約数列:

[1, 5, 7, 19, 35, 37, 95, 133, 185, 259, 665, 703, 823, 1295, 3515, 4115, 4921, 5761, 15637, 24605, 28805, 30451, 78185, 109459, 152255, 213157, 547295, 578569, 1065785, 2892845, 4049983, 20249915]

約数ペア:

[(1, 20249915), (5, 4049983), (7, 2892845), (19, 1065785), (35, 578569), (37, 547295), (95, 213157), (133, 152255), (185, 109459), (259, 78185), (665, 30451), (703, 28805), (823, 24605), (1295, 15637), (3515, 5761), (4115, 4921)]