188507720

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{27241}}^1$

素因数の和:27425

約数の個数: 32

約数和(自身を含む): 426609720

約数和(自身を除く): 238102000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 3460, 6920, 27241, 54482, 108964, 136205, 217928, 272410, 544820, 1089640, 4712693, 9425386, 18850772, 23563465, 37701544, 47126930, 94253860, 188507720]

約数ペア:

[(1, 188507720), (2, 94253860), (4, 47126930), (5, 37701544), (8, 23563465), (10, 18850772), (20, 9425386), (40, 4712693), (173, 1089640), (346, 544820), (692, 272410), (865, 217928), (1384, 136205), (1730, 108964), (3460, 54482), (6920, 27241)]