64785920

素因数分解:

$2^9\times 5^1\times {\mathrm{25307}}^1$

素因数の和:25330

約数の個数: 40

約数和(自身を含む): 155340504

約数和(自身を除く): 90554584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 25307, 50614, 101228, 126535, 202456, 253070, 404912, 506140, 809824, 1012280, 1619648, 2024560, 3239296, 4049120, 6478592, 8098240, 12957184, 16196480, 32392960, 64785920]

約数ペア:

[(1, 64785920), (2, 32392960), (4, 16196480), (5, 12957184), (8, 8098240), (10, 6478592), (16, 4049120), (20, 3239296), (32, 2024560), (40, 1619648), (64, 1012280), (80, 809824), (128, 506140), (160, 404912), (256, 253070), (320, 202456), (512, 126535), (640, 101228), (1280, 50614), (2560, 25307)]