205858320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{857743}}^1$

素因数の和:857759

約数の個数: 40

約数和(自身を含む): 638161536

約数和(自身を除く): 432303216

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 857743, 1715486, 2573229, 3430972, 4288715, 5146458, 6861944, 8577430, 10292916, 12866145, 13723888, 17154860, 20585832, 25732290, 34309720, 41171664, 51464580, 68619440, 102929160, 205858320]

約数ペア:

[(1, 205858320), (2, 102929160), (3, 68619440), (4, 51464580), (5, 41171664), (6, 34309720), (8, 25732290), (10, 20585832), (12, 17154860), (15, 13723888), (16, 12866145), (20, 10292916), (24, 8577430), (30, 6861944), (40, 5146458), (48, 4288715), (60, 3430972), (80, 2573229), (120, 1715486), (240, 857743)]