64675840

素因数分解:

$2^{13}\times 5^1\times {\mathrm{1579}}^1$

素因数の和:1610

約数の個数: 56

約数和(自身を含む): 155310840

約数和(自身を除く): 90635000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 1579, 2048, 2560, 3158, 4096, 5120, 6316, 7895, 8192, 10240, 12632, 15790, 20480, 25264, 31580, 40960, 50528, 63160, 101056, 126320, 202112, 252640, 404224, 505280, 808448, 1010560, 1616896, 2021120, 3233792, 4042240, 6467584, 8084480, 12935168, 16168960, 32337920, 64675840]

約数ペア:

[(1, 64675840), (2, 32337920), (4, 16168960), (5, 12935168), (8, 8084480), (10, 6467584), (16, 4042240), (20, 3233792), (32, 2021120), (40, 1616896), (64, 1010560), (80, 808448), (128, 505280), (160, 404224), (256, 252640), (320, 202112), (512, 126320), (640, 101056), (1024, 63160), (1280, 50528), (1579, 40960), (2048, 31580), (2560, 25264), (3158, 20480), (4096, 15790), (5120, 12632), (6316, 10240), (7895, 8192)]