278110240

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{40423}}^1$

素因数の和:40481

約数の個数: 48

約数和(自身を含む): 672331968

約数和(自身を除く): 394221728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 160, 172, 215, 344, 430, 688, 860, 1376, 1720, 3440, 6880, 40423, 80846, 161692, 202115, 323384, 404230, 646768, 808460, 1293536, 1616920, 1738189, 3233840, 3476378, 6467680, 6952756, 8690945, 13905512, 17381890, 27811024, 34763780, 55622048, 69527560, 139055120, 278110240]

約数ペア:

[(1, 278110240), (2, 139055120), (4, 69527560), (5, 55622048), (8, 34763780), (10, 27811024), (16, 17381890), (20, 13905512), (32, 8690945), (40, 6952756), (43, 6467680), (80, 3476378), (86, 3233840), (160, 1738189), (172, 1616920), (215, 1293536), (344, 808460), (430, 646768), (688, 404230), (860, 323384), (1376, 202115), (1720, 161692), (3440, 80846), (6880, 40423)]