40145920

素因数分解:

$2^{10}\times 5^1\times {\mathrm{7841}}^1$

素因数の和:7866

約数の個数: 44

約数和(自身を含む): 96315444

約数和(自身を除く): 56169524

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, 7841, 15682, 31364, 39205, 62728, 78410, 125456, 156820, 250912, 313640, 501824, 627280, 1003648, 1254560, 2007296, 2509120, 4014592, 5018240, 8029184, 10036480, 20072960, 40145920]

約数ペア:

[(1, 40145920), (2, 20072960), (4, 10036480), (5, 8029184), (8, 5018240), (10, 4014592), (16, 2509120), (20, 2007296), (32, 1254560), (40, 1003648), (64, 627280), (80, 501824), (128, 313640), (160, 250912), (256, 156820), (320, 125456), (512, 78410), (640, 62728), (1024, 39205), (1280, 31364), (2560, 15682), (5120, 7841)]