19355775

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1$

素因数の和:113

約数の個数: 72

約数和(自身を含む): 36545280

約数和(自身を除く): 17189505

約数列:

[1, 3, 5, 15, 17, 19, 25, 47, 51, 57, 75, 85, 95, 141, 235, 255, 285, 289, 323, 425, 475, 705, 799, 867, 893, 969, 1175, 1275, 1425, 1445, 1615, 2397, 2679, 3525, 3995, 4335, 4465, 4845, 5491, 7225, 8075, 11985, 13395, 13583, 15181, 16473, 19975, 21675, 22325, 24225, 27455, 40749, 45543, 59925, 66975, 67915, 75905, 82365, 137275, 203745, 227715, 258077, 339575, 379525, 411825, 774231, 1018725, 1138575, 1290385, 3871155, 6451925, 19355775]

約数ペア:

[(1, 19355775), (3, 6451925), (5, 3871155), (15, 1290385), (17, 1138575), (19, 1018725), (25, 774231), (47, 411825), (51, 379525), (57, 339575), (75, 258077), (85, 227715), (95, 203745), (141, 137275), (235, 82365), (255, 75905), (285, 67915), (289, 66975), (323, 59925), (425, 45543), (475, 40749), (705, 27455), (799, 24225), (867, 22325), (893, 21675), (969, 19975), (1175, 16473), (1275, 15181), (1425, 13583), (1445, 13395), (1615, 11985), (2397, 8075), (2679, 7225), (3525, 5491), (3995, 4845), (4335, 4465)]