19787880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{23557}}^1$

素因数の和:23578

約数の個数: 64

約数和(自身を含む): 67847040

約数和(自身を除く): 48059160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 23557, 47114, 70671, 94228, 117785, 141342, 164899, 188456, 235570, 282684, 329798, 353355, 471140, 494697, 565368, 659596, 706710, 824495, 942280, 989394, 1319192, 1413420, 1648990, 1978788, 2473485, 2826840, 3297980, 3957576, 4946970, 6595960, 9893940, 19787880]

約数ペア:

[(1, 19787880), (2, 9893940), (3, 6595960), (4, 4946970), (5, 3957576), (6, 3297980), (7, 2826840), (8, 2473485), (10, 1978788), (12, 1648990), (14, 1413420), (15, 1319192), (20, 989394), (21, 942280), (24, 824495), (28, 706710), (30, 659596), (35, 565368), (40, 494697), (42, 471140), (56, 353355), (60, 329798), (70, 282684), (84, 235570), (105, 188456), (120, 164899), (140, 141342), (168, 117785), (210, 94228), (280, 70671), (420, 47114), (840, 23557)]