217205320

素因数分解:

$2^3\times 5^1\times {\mathrm{2003}}^1\times {\mathrm{2711}}^1$

素因数の和:4725

約数の個数: 32

約数和(自身を含む): 489136320

約数和(自身を除く): 271931000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2003, 2711, 4006, 5422, 8012, 10015, 10844, 13555, 16024, 20030, 21688, 27110, 40060, 54220, 80120, 108440, 5430133, 10860266, 21720532, 27150665, 43441064, 54301330, 108602660, 217205320]

約数ペア:

[(1, 217205320), (2, 108602660), (4, 54301330), (5, 43441064), (8, 27150665), (10, 21720532), (20, 10860266), (40, 5430133), (2003, 108440), (2711, 80120), (4006, 54220), (5422, 40060), (8012, 27110), (10015, 21688), (10844, 20030), (13555, 16024)]