80205008

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{5431}}^1$

素因数の和:5523

約数の個数: 40

約数和(自身を含む): 169739136

約数和(自身を除く): 89534128

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 71, 104, 142, 208, 284, 568, 923, 1136, 1846, 3692, 5431, 7384, 10862, 14768, 21724, 43448, 70603, 86896, 141206, 282412, 385601, 564824, 771202, 1129648, 1542404, 3084808, 5012813, 6169616, 10025626, 20051252, 40102504, 80205008]

約数ペア:

[(1, 80205008), (2, 40102504), (4, 20051252), (8, 10025626), (13, 6169616), (16, 5012813), (26, 3084808), (52, 1542404), (71, 1129648), (104, 771202), (142, 564824), (208, 385601), (284, 282412), (568, 141206), (923, 86896), (1136, 70603), (1846, 43448), (3692, 21724), (5431, 14768), (7384, 10862)]