18911760

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{11257}}^1$

素因数の和:11280

約数の個数: 80

約数和(自身を含む): 67007616

約数和(自身を除く): 48095856

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 11257, 22514, 33771, 45028, 56285, 67542, 78799, 90056, 112570, 135084, 157598, 168855, 180112, 225140, 236397, 270168, 315196, 337710, 393995, 450280, 472794, 540336, 630392, 675420, 787990, 900560, 945588, 1181985, 1260784, 1350840, 1575980, 1891176, 2363970, 2701680, 3151960, 3782352, 4727940, 6303920, 9455880, 18911760]

約数ペア:

[(1, 18911760), (2, 9455880), (3, 6303920), (4, 4727940), (5, 3782352), (6, 3151960), (7, 2701680), (8, 2363970), (10, 1891176), (12, 1575980), (14, 1350840), (15, 1260784), (16, 1181985), (20, 945588), (21, 900560), (24, 787990), (28, 675420), (30, 630392), (35, 540336), (40, 472794), (42, 450280), (48, 393995), (56, 337710), (60, 315196), (70, 270168), (80, 236397), (84, 225140), (105, 180112), (112, 168855), (120, 157598), (140, 135084), (168, 112570), (210, 90056), (240, 78799), (280, 67542), (336, 56285), (420, 45028), (560, 33771), (840, 22514), (1680, 11257)]