55291120

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{16073}}^1$

素因数の和:16129

約数の個数: 40

約数和(自身を含む): 131549616

約数和(自身を除く): 76258496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 16073, 32146, 64292, 80365, 128584, 160730, 257168, 321460, 642920, 691139, 1285840, 1382278, 2764556, 3455695, 5529112, 6911390, 11058224, 13822780, 27645560, 55291120]

約数ペア:

[(1, 55291120), (2, 27645560), (4, 13822780), (5, 11058224), (8, 6911390), (10, 5529112), (16, 3455695), (20, 2764556), (40, 1382278), (43, 1285840), (80, 691139), (86, 642920), (172, 321460), (215, 257168), (344, 160730), (430, 128584), (688, 80365), (860, 64292), (1720, 32146), (3440, 16073)]