19694925

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1$

素因数の和:323

約数の個数: 72

約数和(自身を含む): 39461760

約数和(自身を除く): 19766835

約数列:

[1, 3, 5, 9, 15, 17, 19, 25, 45, 51, 57, 75, 85, 95, 153, 171, 225, 255, 271, 285, 323, 425, 475, 765, 813, 855, 969, 1275, 1355, 1425, 1615, 2439, 2907, 3825, 4065, 4275, 4607, 4845, 5149, 6775, 8075, 12195, 13821, 14535, 15447, 20325, 23035, 24225, 25745, 41463, 46341, 60975, 69105, 72675, 77235, 87533, 115175, 128725, 207315, 231705, 262599, 345525, 386175, 437665, 787797, 1036575, 1158525, 1312995, 2188325, 3938985, 6564975, 19694925]

約数ペア:

[(1, 19694925), (3, 6564975), (5, 3938985), (9, 2188325), (15, 1312995), (17, 1158525), (19, 1036575), (25, 787797), (45, 437665), (51, 386175), (57, 345525), (75, 262599), (85, 231705), (95, 207315), (153, 128725), (171, 115175), (225, 87533), (255, 77235), (271, 72675), (285, 69105), (323, 60975), (425, 46341), (475, 41463), (765, 25745), (813, 24225), (855, 23035), (969, 20325), (1275, 15447), (1355, 14535), (1425, 13821), (1615, 12195), (2439, 8075), (2907, 6775), (3825, 5149), (4065, 4845), (4275, 4607)]