100019720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{58151}}^1$

素因数の和:58205

約数の個数: 32

約数和(自身を含む): 230281920

約数和(自身を除く): 130262200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 58151, 116302, 232604, 290755, 465208, 581510, 1163020, 2326040, 2500493, 5000986, 10001972, 12502465, 20003944, 25004930, 50009860, 100019720]

約数ペア:

[(1, 100019720), (2, 50009860), (4, 25004930), (5, 20003944), (8, 12502465), (10, 10001972), (20, 5000986), (40, 2500493), (43, 2326040), (86, 1163020), (172, 581510), (215, 465208), (344, 290755), (430, 232604), (860, 116302), (1720, 58151)]