397485795

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{28463}}^1$

素因数の和:28504

約数の個数: 48

約数和(自身を含む): 778775040

約数和(自身を除く): 381289245

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 49, 57, 95, 105, 133, 147, 245, 285, 399, 665, 735, 931, 1995, 2793, 4655, 13965, 28463, 85389, 142315, 199241, 426945, 540797, 597723, 996205, 1394687, 1622391, 2703985, 2988615, 3785579, 4184061, 6973435, 8111955, 11356737, 18927895, 20920305, 26499053, 56783685, 79497159, 132495265, 397485795]

約数ペア:

[(1, 397485795), (3, 132495265), (5, 79497159), (7, 56783685), (15, 26499053), (19, 20920305), (21, 18927895), (35, 11356737), (49, 8111955), (57, 6973435), (95, 4184061), (105, 3785579), (133, 2988615), (147, 2703985), (245, 1622391), (285, 1394687), (399, 996205), (665, 597723), (735, 540797), (931, 426945), (1995, 199241), (2793, 142315), (4655, 85389), (13965, 28463)]