40709120

素因数分解:

$2^{10}\times 5^1\times {\mathrm{7951}}^1$

素因数の和:7976

約数の個数: 44

約数和(自身を含む): 97666464

約数和(自身を除く): 56957344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 7951, 15902, 31804, 39755, 63608, 79510, 127216, 159020, 254432, 318040, 508864, 636080, 1017728, 1272160, 2035456, 2544320, 4070912, 5088640, 8141824, 10177280, 20354560, 40709120]

約数ペア:

[(1, 40709120), (2, 20354560), (4, 10177280), (5, 8141824), (8, 5088640), (10, 4070912), (16, 2544320), (20, 2035456), (32, 1272160), (40, 1017728), (64, 636080), (80, 508864), (128, 318040), (160, 254432), (256, 159020), (320, 127216), (512, 79510), (640, 63608), (1024, 39755), (1280, 31804), (2560, 15902), (5120, 7951)]