1287942700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{1170857}}^1$

素因数の和:1170882

約数の個数: 36

約数和(自身を含む): 3048914232

約数和(自身を除く): 1760971532

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 275, 550, 1100, 1170857, 2341714, 4683428, 5854285, 11708570, 12879427, 23417140, 25758854, 29271425, 51517708, 58542850, 64397135, 117085700, 128794270, 257588540, 321985675, 643971350, 1287942700]

約数ペア:

[(1, 1287942700), (2, 643971350), (4, 321985675), (5, 257588540), (10, 128794270), (11, 117085700), (20, 64397135), (22, 58542850), (25, 51517708), (44, 29271425), (50, 25758854), (55, 23417140), (100, 12879427), (110, 11708570), (220, 5854285), (275, 4683428), (550, 2341714), (1100, 1170857)]