40138240

素因数分解:

$2^9\times 5^1\times {\mathrm{15679}}^1$

素因数の和:15702

約数の個数: 40

約数和(自身を含む): 96243840

約数和(自身を除く): 56105600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 15679, 31358, 62716, 78395, 125432, 156790, 250864, 313580, 501728, 627160, 1003456, 1254320, 2006912, 2508640, 4013824, 5017280, 8027648, 10034560, 20069120, 40138240]

約数ペア:

[(1, 40138240), (2, 20069120), (4, 10034560), (5, 8027648), (8, 5017280), (10, 4013824), (16, 2508640), (20, 2006912), (32, 1254320), (40, 1003456), (64, 627160), (80, 501728), (128, 313580), (160, 250864), (256, 156790), (320, 125432), (512, 78395), (640, 62716), (1280, 31358), (2560, 15679)]