61448720

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{17863}}^1$

素因数の和:17919

約数の個数: 40

約数和(自身を含む): 146198976

約数和(自身を除く): 84750256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 17863, 35726, 71452, 89315, 142904, 178630, 285808, 357260, 714520, 768109, 1429040, 1536218, 3072436, 3840545, 6144872, 7681090, 12289744, 15362180, 30724360, 61448720]

約数ペア:

[(1, 61448720), (2, 30724360), (4, 15362180), (5, 12289744), (8, 7681090), (10, 6144872), (16, 3840545), (20, 3072436), (40, 1536218), (43, 1429040), (80, 768109), (86, 714520), (172, 357260), (215, 285808), (344, 178630), (430, 142904), (688, 89315), (860, 71452), (1720, 35726), (3440, 17863)]