81072840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{675607}}^1$

素因数の和:675621

約数の個数: 32

約数和(自身を含む): 243218880

約数和(自身を除く): 162146040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 675607, 1351214, 2026821, 2702428, 3378035, 4053642, 5404856, 6756070, 8107284, 10134105, 13512140, 16214568, 20268210, 27024280, 40536420, 81072840]

約数ペア:

[(1, 81072840), (2, 40536420), (3, 27024280), (4, 20268210), (5, 16214568), (6, 13512140), (8, 10134105), (10, 8107284), (12, 6756070), (15, 5404856), (20, 4053642), (24, 3378035), (30, 2702428), (40, 2026821), (60, 1351214), (120, 675607)]