1397236480

素因数分解:

$2^8\times 5^1\times {\mathrm{1091591}}^1$

素因数の和:1091612

約数の個数: 36

約数和(自身を含む): 3346821072

約数和(自身を除く): 1949584592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 1091591, 2183182, 4366364, 5457955, 8732728, 10915910, 17465456, 21831820, 34930912, 43663640, 69861824, 87327280, 139723648, 174654560, 279447296, 349309120, 698618240, 1397236480]

約数ペア:

[(1, 1397236480), (2, 698618240), (4, 349309120), (5, 279447296), (8, 174654560), (10, 139723648), (16, 87327280), (20, 69861824), (32, 43663640), (40, 34930912), (64, 21831820), (80, 17465456), (128, 10915910), (160, 8732728), (256, 5457955), (320, 4366364), (640, 2183182), (1280, 1091591)]