25424240

素因数分解:

$2^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1597}}^1$

素因数の和:1809

約数の個数: 40

約数和(自身を含む): 59445600

約数和(自身を除く): 34021360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199, 398, 796, 995, 1592, 1597, 1990, 3184, 3194, 3980, 6388, 7960, 7985, 12776, 15920, 15970, 25552, 31940, 63880, 127760, 317803, 635606, 1271212, 1589015, 2542424, 3178030, 5084848, 6356060, 12712120, 25424240]

約数ペア:

[(1, 25424240), (2, 12712120), (4, 6356060), (5, 5084848), (8, 3178030), (10, 2542424), (16, 1589015), (20, 1271212), (40, 635606), (80, 317803), (199, 127760), (398, 63880), (796, 31940), (995, 25552), (1592, 15970), (1597, 15920), (1990, 12776), (3184, 7985), (3194, 7960), (3980, 6388)]