251010640

素因数分解:

$2^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{15767}}^1$

素因数の和:15979

約数の個数: 40

約数和(自身を含む): 586569600

約数和(自身を除く): 335558960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199, 398, 796, 995, 1592, 1990, 3184, 3980, 7960, 15767, 15920, 31534, 63068, 78835, 126136, 157670, 252272, 315340, 630680, 1261360, 3137633, 6275266, 12550532, 15688165, 25101064, 31376330, 50202128, 62752660, 125505320, 251010640]

約数ペア:

[(1, 251010640), (2, 125505320), (4, 62752660), (5, 50202128), (8, 31376330), (10, 25101064), (16, 15688165), (20, 12550532), (40, 6275266), (80, 3137633), (199, 1261360), (398, 630680), (796, 315340), (995, 252272), (1592, 157670), (1990, 126136), (3184, 78835), (3980, 63068), (7960, 31534), (15767, 15920)]