81702840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{680857}}^1$

素因数の和:680871

約数の個数: 32

約数和(自身を含む): 245108880

約数和(自身を除く): 163406040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 680857, 1361714, 2042571, 2723428, 3404285, 4085142, 5446856, 6808570, 8170284, 10212855, 13617140, 16340568, 20425710, 27234280, 40851420, 81702840]

約数ペア:

[(1, 81702840), (2, 40851420), (3, 27234280), (4, 20425710), (5, 16340568), (6, 13617140), (8, 10212855), (10, 8170284), (12, 6808570), (15, 5446856), (20, 4085142), (24, 3404285), (30, 2723428), (40, 2042571), (60, 1361714), (120, 680857)]