389939888

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{98669}}^1$

素因数の和:98709

約数の個数: 40

約数和(自身を含む): 856455600

約数和(自身を除く): 466515712

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 98669, 197338, 394676, 789352, 1282697, 1578704, 1874711, 2565394, 3749422, 5130788, 7498844, 10261576, 14997688, 20523152, 24371243, 29995376, 48742486, 97484972, 194969944, 389939888]

約数ペア:

[(1, 389939888), (2, 194969944), (4, 97484972), (8, 48742486), (13, 29995376), (16, 24371243), (19, 20523152), (26, 14997688), (38, 10261576), (52, 7498844), (76, 5130788), (104, 3749422), (152, 2565394), (208, 1874711), (247, 1578704), (304, 1282697), (494, 789352), (988, 394676), (1976, 197338), (3952, 98669)]