81401880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{96907}}^1$

素因数の和:96928

約数の個数: 64

約数和(自身を含む): 279095040

約数和(自身を除く): 197693160

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, 96907, 193814, 290721, 387628, 484535, 581442, 678349, 775256, 969070, 1162884, 1356698, 1453605, 1938140, 2035047, 2325768, 2713396, 2907210, 3391745, 3876280, 4070094, 5426792, 5814420, 6783490, 8140188, 10175235, 11628840, 13566980, 16280376, 20350470, 27133960, 40700940, 81401880]

約数ペア:

[(1, 81401880), (2, 40700940), (3, 27133960), (4, 20350470), (5, 16280376), (6, 13566980), (7, 11628840), (8, 10175235), (10, 8140188), (12, 6783490), (14, 5814420), (15, 5426792), (20, 4070094), (21, 3876280), (24, 3391745), (28, 2907210), (30, 2713396), (35, 2325768), (40, 2035047), (42, 1938140), (56, 1453605), (60, 1356698), (70, 1162884), (84, 969070), (105, 775256), (120, 678349), (140, 581442), (168, 484535), (210, 387628), (280, 290721), (420, 193814), (840, 96907)]