20507720

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{22291}}^1$

素因数の和:22325

約数の個数: 32

約数和(自身を含む): 48150720

約数和(自身を除く): 27643000

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 22291, 44582, 89164, 111455, 178328, 222910, 445820, 512693, 891640, 1025386, 2050772, 2563465, 4101544, 5126930, 10253860, 20507720]

約数ペア:

[(1, 20507720), (2, 10253860), (4, 5126930), (5, 4101544), (8, 2563465), (10, 2050772), (20, 1025386), (23, 891640), (40, 512693), (46, 445820), (92, 222910), (115, 178328), (184, 111455), (230, 89164), (460, 44582), (920, 22291)]