19159725

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{457}}^1$

素因数の和:526

約数の個数: 48

約数和(自身を含む): 34983872

約数和(自身を除く): 15824147

約数列:

[1, 3, 5, 13, 15, 25, 39, 43, 65, 75, 129, 195, 215, 325, 457, 559, 645, 975, 1075, 1371, 1677, 2285, 2795, 3225, 5941, 6855, 8385, 11425, 13975, 17823, 19651, 29705, 34275, 41925, 58953, 89115, 98255, 148525, 255463, 294765, 445575, 491275, 766389, 1277315, 1473825, 3831945, 6386575, 19159725]

約数ペア:

[(1, 19159725), (3, 6386575), (5, 3831945), (13, 1473825), (15, 1277315), (25, 766389), (39, 491275), (43, 445575), (65, 294765), (75, 255463), (129, 148525), (195, 98255), (215, 89115), (325, 58953), (457, 41925), (559, 34275), (645, 29705), (975, 19651), (1075, 17823), (1371, 13975), (1677, 11425), (2285, 8385), (2795, 6855), (3225, 5941)]